Home / 87,729.98-120,925.19-68,575.91

Finding the Fourth Proportional to 87,729.98, 120,925.19 and 68,575.91

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Solution

The fourth proportional to 87,729.98, 120,925.19 and 68,575.91 is: 94,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,729.98 : 120,925.19 = 68,575.91 : x
  2. Step 2: Convert to fraction form
    87,729.98/120,925.19 = 68,575.91/x
  3. Step 3: Cross multiply
    87,729.98x = 120,925.19 × 68,575.91
  4. Step 4: Simplify right side
    87,729.98x = 8,292,554,603.29
  5. Step 5: Solve for x
    x = 8,292,554,603.29/87,729.98
  6. Step 6: Final answer
    x = 94,523.61

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1.5x scale

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.