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Finding the Fourth Proportional to 88,136.79, 132,204.96 and 31,976.79

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Solution

The fourth proportional to 88,136.79, 132,204.96 and 31,976.79 is: 47,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,136.79 : 132,204.96 = 31,976.79 : x
  2. Step 2: Convert to fraction form
    88,136.79/132,204.96 = 31,976.79/x
  3. Step 3: Cross multiply
    88,136.79x = 132,204.96 × 31,976.79
  4. Step 4: Simplify right side
    88,136.79x = 4,227,490,242.88
  5. Step 5: Solve for x
    x = 4,227,490,242.88/88,136.79
  6. Step 6: Final answer
    x = 47,965.10

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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.