Home / 87,002.16-120,120.83-66,822.97

Finding the Fourth Proportional to 87,002.16, 120,120.83 and 66,822.97

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Solution

The fourth proportional to 87,002.16, 120,120.83 and 66,822.97 is: 92,260.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,002.16 : 120,120.83 = 66,822.97 : x
  2. Step 2: Convert to fraction form
    87,002.16/120,120.83 = 66,822.97/x
  3. Step 3: Cross multiply
    87,002.16x = 120,120.83 × 66,822.97
  4. Step 4: Simplify right side
    87,002.16x = 8,026,830,619.47
  5. Step 5: Solve for x
    x = 8,026,830,619.47/87,002.16
  6. Step 6: Final answer
    x = 92,260.13

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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.