Home / 87,776.22-121,142.19-67,616.94

Finding the Fourth Proportional to 87,776.22, 121,142.19 and 67,616.94

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Solution

The fourth proportional to 87,776.22, 121,142.19 and 67,616.94 is: 93,319.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,776.22 : 121,142.19 = 67,616.94 : x
  2. Step 2: Convert to fraction form
    87,776.22/121,142.19 = 67,616.94/x
  3. Step 3: Cross multiply
    87,776.22x = 121,142.19 × 67,616.94
  4. Step 4: Simplify right side
    87,776.22x = 8,191,264,192.70
  5. Step 5: Solve for x
    x = 8,191,264,192.70/87,776.22
  6. Step 6: Final answer
    x = 93,319.86

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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.