Home / 87,738.10-121,176.94-59,394.58

Finding the Fourth Proportional to 87,738.10, 121,176.94 and 59,394.58

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Solution

The fourth proportional to 87,738.10, 121,176.94 and 59,394.58 is: 82,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,738.10 : 121,176.94 = 59,394.58 : x
  2. Step 2: Convert to fraction form
    87,738.10/121,176.94 = 59,394.58/x
  3. Step 3: Cross multiply
    87,738.10x = 121,176.94 × 59,394.58
  4. Step 4: Simplify right side
    87,738.10x = 7,197,253,456.99
  5. Step 5: Solve for x
    x = 7,197,253,456.99/87,738.10
  6. Step 6: Final answer
    x = 82,031.11

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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.