Home / 47,839.80-71,792.10-31,159.20

Finding the Fourth Proportional to 47,839.80, 71,792.10 and 31,159.20

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Solution

The fourth proportional to 47,839.80, 71,792.10 and 31,159.20 is: 46,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,839.80 : 71,792.10 = 31,159.20 : x
  2. Step 2: Convert to fraction form
    47,839.80/71,792.10 = 31,159.20/x
  3. Step 3: Cross multiply
    47,839.80x = 71,792.10 × 31,159.20
  4. Step 4: Simplify right side
    47,839.80x = 2,236,984,402.32
  5. Step 5: Solve for x
    x = 2,236,984,402.32/47,839.80
  6. Step 6: Final answer
    x = 46,759.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.