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Finding the Fourth Proportional to 66,937.20, 100,411.83 and 29,488.38

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Solution

The fourth proportional to 66,937.20, 100,411.83 and 29,488.38 is: 44,235.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,937.20 : 100,411.83 = 29,488.38 : x
  2. Step 2: Convert to fraction form
    66,937.20/100,411.83 = 29,488.38/x
  3. Step 3: Cross multiply
    66,937.20x = 100,411.83 × 29,488.38
  4. Step 4: Simplify right side
    66,937.20x = 2,960,982,199.54
  5. Step 5: Solve for x
    x = 2,960,982,199.54/66,937.20
  6. Step 6: Final answer
    x = 44,235.23

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1.5x scale

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.