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Finding the Fourth Proportional to 74,385.52, 102,652 and 40,851.52

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Solution

The fourth proportional to 74,385.52, 102,652 and 40,851.52 is: 56,375.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,385.52 : 102,652 = 40,851.52 : x
  2. Step 2: Convert to fraction form
    74,385.52/102,652 = 40,851.52/x
  3. Step 3: Cross multiply
    74,385.52x = 102,652 × 40,851.52
  4. Step 4: Simplify right side
    74,385.52x = 4,193,490,231.04
  5. Step 5: Solve for x
    x = 4,193,490,231.04/74,385.52
  6. Step 6: Final answer
    x = 56,375.09

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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.