Home / 53,870.18-74,340.13-29,670.67

Finding the Fourth Proportional to 53,870.18, 74,340.13 and 29,670.67

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Solution

The fourth proportional to 53,870.18, 74,340.13 and 29,670.67 is: 40,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,870.18 : 74,340.13 = 29,670.67 : x
  2. Step 2: Convert to fraction form
    53,870.18/74,340.13 = 29,670.67/x
  3. Step 3: Cross multiply
    53,870.18x = 74,340.13 × 29,670.67
  4. Step 4: Simplify right side
    53,870.18x = 2,205,721,316.63
  5. Step 5: Solve for x
    x = 2,205,721,316.63/53,870.18
  6. Step 6: Final answer
    x = 40,945.13

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Half scale
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Double scale
Find fourth proportional to 53,871.18, 74,341.50 and 29,671.67
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.