Home / 87,356.61-120,551.49-49,630.86

Finding the Fourth Proportional to 87,356.61, 120,551.49 and 49,630.86

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Solution

The fourth proportional to 87,356.61, 120,551.49 and 49,630.86 is: 68,490.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,356.61 : 120,551.49 = 49,630.86 : x
  2. Step 2: Convert to fraction form
    87,356.61/120,551.49 = 49,630.86/x
  3. Step 3: Cross multiply
    87,356.61x = 120,551.49 × 49,630.86
  4. Step 4: Simplify right side
    87,356.61x = 5,983,074,122.98
  5. Step 5: Solve for x
    x = 5,983,074,122.98/87,356.61
  6. Step 6: Final answer
    x = 68,490.23

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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.