Home / 71,418.60-98,560.80-39,587.52

Finding the Fourth Proportional to 71,418.60, 98,560.80 and 39,587.52

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Solution

The fourth proportional to 71,418.60, 98,560.80 and 39,587.52 is: 54,632.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,418.60 : 98,560.80 = 39,587.52 : x
  2. Step 2: Convert to fraction form
    71,418.60/98,560.80 = 39,587.52/x
  3. Step 3: Cross multiply
    71,418.60x = 98,560.80 × 39,587.52
  4. Step 4: Simplify right side
    71,418.60x = 3,901,777,641.22
  5. Step 5: Solve for x
    x = 3,901,777,641.22/71,418.60
  6. Step 6: Final answer
    x = 54,632.51

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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.