Home / 71,390.55-98,519.64-39,560.13

Finding the Fourth Proportional to 71,390.55, 98,519.64 and 39,560.13

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Solution

The fourth proportional to 71,390.55, 98,519.64 and 39,560.13 is: 54,593.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,390.55 : 98,519.64 = 39,560.13 : x
  2. Step 2: Convert to fraction form
    71,390.55/98,519.64 = 39,560.13/x
  3. Step 3: Cross multiply
    71,390.55x = 98,519.64 × 39,560.13
  4. Step 4: Simplify right side
    71,390.55x = 3,897,449,765.95
  5. Step 5: Solve for x
    x = 3,897,449,765.95/71,390.55
  6. Step 6: Final answer
    x = 54,593.36

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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.