Home / 87,897.40-121,295.82-49,658.74

Finding the Fourth Proportional to 87,897.40, 121,295.82 and 49,658.74

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Solution

The fourth proportional to 87,897.40, 121,295.82 and 49,658.74 is: 68,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,897.40 : 121,295.82 = 49,658.74 : x
  2. Step 2: Convert to fraction form
    87,897.40/121,295.82 = 49,658.74/x
  3. Step 3: Cross multiply
    87,897.40x = 121,295.82 × 49,658.74
  4. Step 4: Simplify right side
    87,897.40x = 6,023,397,588.47
  5. Step 5: Solve for x
    x = 6,023,397,588.47/87,897.40
  6. Step 6: Final answer
    x = 68,527.60

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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.