Home / 71,600.38-98,805.76-39,771.29

Finding the Fourth Proportional to 71,600.38, 98,805.76 and 39,771.29

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Solution

The fourth proportional to 71,600.38, 98,805.76 and 39,771.29 is: 54,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,600.38 : 98,805.76 = 39,771.29 : x
  2. Step 2: Convert to fraction form
    71,600.38/98,805.76 = 39,771.29/x
  3. Step 3: Cross multiply
    71,600.38x = 98,805.76 × 39,771.29
  4. Step 4: Simplify right side
    71,600.38x = 3,929,632,682.22
  5. Step 5: Solve for x
    x = 3,929,632,682.22/71,600.38
  6. Step 6: Final answer
    x = 54,882.85

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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.