Home / 102,372.76-141,274.55-57,049.75

Finding the Fourth Proportional to 102,372.76, 141,274.55 and 57,049.75

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Solution

The fourth proportional to 102,372.76, 141,274.55 and 57,049.75 is: 78,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,372.76 : 141,274.55 = 57,049.75 : x
  2. Step 2: Convert to fraction form
    102,372.76/141,274.55 = 57,049.75/x
  3. Step 3: Cross multiply
    102,372.76x = 141,274.55 × 57,049.75
  4. Step 4: Simplify right side
    102,372.76x = 8,059,677,473.61
  5. Step 5: Solve for x
    x = 8,059,677,473.61/102,372.76
  6. Step 6: Final answer
    x = 78,728.73

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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.