Home / 74,670.66-103,039.29-42,832.80

Finding the Fourth Proportional to 74,670.66, 103,039.29 and 42,832.80

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Solution

The fourth proportional to 74,670.66, 103,039.29 and 42,832.80 is: 59,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,670.66 : 103,039.29 = 42,832.80 : x
  2. Step 2: Convert to fraction form
    74,670.66/103,039.29 = 42,832.80/x
  3. Step 3: Cross multiply
    74,670.66x = 103,039.29 × 42,832.80
  4. Step 4: Simplify right side
    74,670.66x = 4,413,461,300.71
  5. Step 5: Solve for x
    x = 4,413,461,300.71/74,670.66
  6. Step 6: Final answer
    x = 59,105.70

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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.