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Finding the Fourth Proportional to 66,158.67, 91,278.87 and 37,473.78

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Solution

The fourth proportional to 66,158.67, 91,278.87 and 37,473.78 is: 51,702.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,158.67 : 91,278.87 = 37,473.78 : x
  2. Step 2: Convert to fraction form
    66,158.67/91,278.87 = 37,473.78/x
  3. Step 3: Cross multiply
    66,158.67x = 91,278.87 × 37,473.78
  4. Step 4: Simplify right side
    66,158.67x = 3,420,564,494.80
  5. Step 5: Solve for x
    x = 3,420,564,494.80/66,158.67
  6. Step 6: Final answer
    x = 51,702.43

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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.