Home / 74,764.29-103,170.87-42,494.70

Finding the Fourth Proportional to 74,764.29, 103,170.87 and 42,494.70

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Solution

The fourth proportional to 74,764.29, 103,170.87 and 42,494.70 is: 58,640.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,764.29 : 103,170.87 = 42,494.70 : x
  2. Step 2: Convert to fraction form
    74,764.29/103,170.87 = 42,494.70/x
  3. Step 3: Cross multiply
    74,764.29x = 103,170.87 × 42,494.70
  4. Step 4: Simplify right side
    74,764.29x = 4,384,215,169.39
  5. Step 5: Solve for x
    x = 4,384,215,169.39/74,764.29
  6. Step 6: Final answer
    x = 58,640.50

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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.