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Finding the Fourth Proportional to 66,134.60, 91,261 and 37,446

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Solution

The fourth proportional to 66,134.60, 91,261 and 37,446 is: 51,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,134.60 : 91,261 = 37,446 : x
  2. Step 2: Convert to fraction form
    66,134.60/91,261 = 37,446/x
  3. Step 3: Cross multiply
    66,134.60x = 91,261 × 37,446
  4. Step 4: Simplify right side
    66,134.60x = 3,417,359,406
  5. Step 5: Solve for x
    x = 3,417,359,406/66,134.60
  6. Step 6: Final answer
    x = 51,672.79

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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.