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Finding the Fourth Proportional to 64,134.60, 88,503.72 and 45,042.12

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Solution

The fourth proportional to 64,134.60, 88,503.72 and 45,042.12 is: 62,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,134.60 : 88,503.72 = 45,042.12 : x
  2. Step 2: Convert to fraction form
    64,134.60/88,503.72 = 45,042.12/x
  3. Step 3: Cross multiply
    64,134.60x = 88,503.72 × 45,042.12
  4. Step 4: Simplify right side
    64,134.60x = 3,986,395,176.69
  5. Step 5: Solve for x
    x = 3,986,395,176.69/64,134.60
  6. Step 6: Final answer
    x = 62,156.70

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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.