Home / 71,501.40-98,671.95-39,670.22

Finding the Fourth Proportional to 71,501.40, 98,671.95 and 39,670.22

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Solution

The fourth proportional to 71,501.40, 98,671.95 and 39,670.22 is: 54,744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,501.40 : 98,671.95 = 39,670.22 : x
  2. Step 2: Convert to fraction form
    71,501.40/98,671.95 = 39,670.22/x
  3. Step 3: Cross multiply
    71,501.40x = 98,671.95 × 39,670.22
  4. Step 4: Simplify right side
    71,501.40x = 3,914,338,062.25
  5. Step 5: Solve for x
    x = 3,914,338,062.25/71,501.40
  6. Step 6: Final answer
    x = 54,744.91

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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.