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Finding the Fourth Proportional to 87,950, 131,442.16 and 64,307.30

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Solution

The fourth proportional to 87,950, 131,442.16 and 64,307.30 is: 96,107.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,950 : 131,442.16 = 64,307.30 : x
  2. Step 2: Convert to fraction form
    87,950/131,442.16 = 64,307.30/x
  3. Step 3: Cross multiply
    87,950x = 131,442.16 × 64,307.30
  4. Step 4: Simplify right side
    87,950x = 8,452,690,415.77
  5. Step 5: Solve for x
    x = 8,452,690,415.77/87,950
  6. Step 6: Final answer
    x = 96,107.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.