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Finding the Fourth Proportional to 83,811.50, 125,732.71 and 27,655.49

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Solution

The fourth proportional to 83,811.50, 125,732.71 and 27,655.49 is: 41,488.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,811.50 : 125,732.71 = 27,655.49 : x
  2. Step 2: Convert to fraction form
    83,811.50/125,732.71 = 27,655.49/x
  3. Step 3: Cross multiply
    83,811.50x = 125,732.71 × 27,655.49
  4. Step 4: Simplify right side
    83,811.50x = 3,477,199,704.08
  5. Step 5: Solve for x
    x = 3,477,199,704.08/83,811.50
  6. Step 6: Final answer
    x = 41,488.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.