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Finding the Fourth Proportional to 66,737.68, 92,118.50 and 38,462.20

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Solution

The fourth proportional to 66,737.68, 92,118.50 and 38,462.20 is: 53,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,737.68 : 92,118.50 = 38,462.20 : x
  2. Step 2: Convert to fraction form
    66,737.68/92,118.50 = 38,462.20/x
  3. Step 3: Cross multiply
    66,737.68x = 92,118.50 × 38,462.20
  4. Step 4: Simplify right side
    66,737.68x = 3,543,080,170.70
  5. Step 5: Solve for x
    x = 3,543,080,170.70/66,737.68
  6. Step 6: Final answer
    x = 53,089.65

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1.5x scale

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.