Home / 87,788.34-121,117.68-49,542.98

Finding the Fourth Proportional to 87,788.34, 121,117.68 and 49,542.98

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Solution

The fourth proportional to 87,788.34, 121,117.68 and 49,542.98 is: 68,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.34 : 121,117.68 = 49,542.98 : x
  2. Step 2: Convert to fraction form
    87,788.34/121,117.68 = 49,542.98/x
  3. Step 3: Cross multiply
    87,788.34x = 121,117.68 × 49,542.98
  4. Step 4: Simplify right side
    87,788.34x = 6,000,530,192.30
  5. Step 5: Solve for x
    x = 6,000,530,192.30/87,788.34
  6. Step 6: Final answer
    x = 68,352.25

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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.