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Finding the Fourth Proportional to 55,100.66, 82,651.68 and 15,657.72

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Solution

The fourth proportional to 55,100.66, 82,651.68 and 15,657.72 is: 23,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,100.66 : 82,651.68 = 15,657.72 : x
  2. Step 2: Convert to fraction form
    55,100.66/82,651.68 = 15,657.72/x
  3. Step 3: Cross multiply
    55,100.66x = 82,651.68 × 15,657.72
  4. Step 4: Simplify right side
    55,100.66x = 1,294,136,862.97
  5. Step 5: Solve for x
    x = 1,294,136,862.97/55,100.66
  6. Step 6: Final answer
    x = 23,486.78

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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.