Home / 74,770.29-103,179.15-42,500.70

Finding the Fourth Proportional to 74,770.29, 103,179.15 and 42,500.70

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Solution

The fourth proportional to 74,770.29, 103,179.15 and 42,500.70 is: 58,648.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,770.29 : 103,179.15 = 42,500.70 : x
  2. Step 2: Convert to fraction form
    74,770.29/103,179.15 = 42,500.70/x
  3. Step 3: Cross multiply
    74,770.29x = 103,179.15 × 42,500.70
  4. Step 4: Simplify right side
    74,770.29x = 4,385,186,100.41
  5. Step 5: Solve for x
    x = 4,385,186,100.41/74,770.29
  6. Step 6: Final answer
    x = 58,648.78

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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.