Home / 87,902.72-121,306.33-47,616.48

Finding the Fourth Proportional to 87,902.72, 121,306.33 and 47,616.48

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Solution

The fourth proportional to 87,902.72, 121,306.33 and 47,616.48 is: 65,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,902.72 : 121,306.33 = 47,616.48 : x
  2. Step 2: Convert to fraction form
    87,902.72/121,306.33 = 47,616.48/x
  3. Step 3: Cross multiply
    87,902.72x = 121,306.33 × 47,616.48
  4. Step 4: Simplify right side
    87,902.72x = 5,776,180,436.32
  5. Step 5: Solve for x
    x = 5,776,180,436.32/87,902.72
  6. Step 6: Final answer
    x = 65,711.05

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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.