Home / 53,909.28-74,396.88-31,247.88

Finding the Fourth Proportional to 53,909.28, 74,396.88 and 31,247.88

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Solution

The fourth proportional to 53,909.28, 74,396.88 and 31,247.88 is: 43,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,909.28 : 74,396.88 = 31,247.88 : x
  2. Step 2: Convert to fraction form
    53,909.28/74,396.88 = 31,247.88/x
  3. Step 3: Cross multiply
    53,909.28x = 74,396.88 × 31,247.88
  4. Step 4: Simplify right side
    53,909.28x = 2,324,744,778.61
  5. Step 5: Solve for x
    x = 2,324,744,778.61/53,909.28
  6. Step 6: Final answer
    x = 43,123.28

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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.