Home / 71,190.47-98,234.19-39,354.95

Finding the Fourth Proportional to 71,190.47, 98,234.19 and 39,354.95

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Solution

The fourth proportional to 71,190.47, 98,234.19 and 39,354.95 is: 54,305.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,190.47 : 98,234.19 = 39,354.95 : x
  2. Step 2: Convert to fraction form
    71,190.47/98,234.19 = 39,354.95/x
  3. Step 3: Cross multiply
    71,190.47x = 98,234.19 × 39,354.95
  4. Step 4: Simplify right side
    71,190.47x = 3,866,001,144.57
  5. Step 5: Solve for x
    x = 3,866,001,144.57/71,190.47
  6. Step 6: Final answer
    x = 54,305.04

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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.