Home / 71,542.90-98,733.68-39,712.33

Finding the Fourth Proportional to 71,542.90, 98,733.68 and 39,712.33

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Solution

The fourth proportional to 71,542.90, 98,733.68 and 39,712.33 is: 54,805.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,542.90 : 98,733.68 = 39,712.33 : x
  2. Step 2: Convert to fraction form
    71,542.90/98,733.68 = 39,712.33/x
  3. Step 3: Cross multiply
    71,542.90x = 98,733.68 × 39,712.33
  4. Step 4: Simplify right side
    71,542.90x = 3,920,944,581.56
  5. Step 5: Solve for x
    x = 3,920,944,581.56/71,542.90
  6. Step 6: Final answer
    x = 54,805.50

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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.