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Finding the Fourth Proportional to 90,952, 125,508.88 and 50,114.86

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Solution

The fourth proportional to 90,952, 125,508.88 and 50,114.86 is: 69,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,952 : 125,508.88 = 50,114.86 : x
  2. Step 2: Convert to fraction form
    90,952/125,508.88 = 50,114.86/x
  3. Step 3: Cross multiply
    90,952x = 125,508.88 × 50,114.86
  4. Step 4: Simplify right side
    90,952x = 6,289,859,949.96
  5. Step 5: Solve for x
    x = 6,289,859,949.96/90,952
  6. Step 6: Final answer
    x = 69,155.82

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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.