Home / 87,902.50-121,298.24-49,665.36

Finding the Fourth Proportional to 87,902.50, 121,298.24 and 49,665.36

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Solution

The fourth proportional to 87,902.50, 121,298.24 and 49,665.36 is: 68,534.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,902.50 : 121,298.24 = 49,665.36 : x
  2. Step 2: Convert to fraction form
    87,902.50/121,298.24 = 49,665.36/x
  3. Step 3: Cross multiply
    87,902.50x = 121,298.24 × 49,665.36
  4. Step 4: Simplify right side
    87,902.50x = 6,024,320,632.80
  5. Step 5: Solve for x
    x = 6,024,320,632.80/87,902.50
  6. Step 6: Final answer
    x = 68,534.12

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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.