Home / 87,757.72-121,116.66-67,598.44

Finding the Fourth Proportional to 87,757.72, 121,116.66 and 67,598.44

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Solution

The fourth proportional to 87,757.72, 121,116.66 and 67,598.44 is: 93,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,757.72 : 121,116.66 = 67,598.44 : x
  2. Step 2: Convert to fraction form
    87,757.72/121,116.66 = 67,598.44/x
  3. Step 3: Cross multiply
    87,757.72x = 121,116.66 × 67,598.44
  4. Step 4: Simplify right side
    87,757.72x = 8,187,297,274.01
  5. Step 5: Solve for x
    x = 8,187,297,274.01/87,757.72
  6. Step 6: Final answer
    x = 93,294.33

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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.