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Finding the Fourth Proportional to 88,687.92, 133,031.88 and 51,726

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Solution

The fourth proportional to 88,687.92, 133,031.88 and 51,726 is: 77,589

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,687.92 : 133,031.88 = 51,726 : x
  2. Step 2: Convert to fraction form
    88,687.92/133,031.88 = 51,726/x
  3. Step 3: Cross multiply
    88,687.92x = 133,031.88 × 51,726
  4. Step 4: Simplify right side
    88,687.92x = 6,881,207,024.88
  5. Step 5: Solve for x
    x = 6,881,207,024.88/88,687.92
  6. Step 6: Final answer
    x = 77,589

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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.