Home / 66,766.29-100,146.78-16,845.72

Finding the Fourth Proportional to 66,766.29, 100,146.78 and 16,845.72

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Solution

The fourth proportional to 66,766.29, 100,146.78 and 16,845.72 is: 25,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,766.29 : 100,146.78 = 16,845.72 : x
  2. Step 2: Convert to fraction form
    66,766.29/100,146.78 = 16,845.72/x
  3. Step 3: Cross multiply
    66,766.29x = 100,146.78 × 16,845.72
  4. Step 4: Simplify right side
    66,766.29x = 1,687,044,614.78
  5. Step 5: Solve for x
    x = 1,687,044,614.78/66,766.29
  6. Step 6: Final answer
    x = 25,267.91

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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.