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Finding the Fourth Proportional to 88,254.78, 132,381 and 21,695.46

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Solution

The fourth proportional to 88,254.78, 132,381 and 21,695.46 is: 32,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,254.78 : 132,381 = 21,695.46 : x
  2. Step 2: Convert to fraction form
    88,254.78/132,381 = 21,695.46/x
  3. Step 3: Cross multiply
    88,254.78x = 132,381 × 21,695.46
  4. Step 4: Simplify right side
    88,254.78x = 2,872,066,690.26
  5. Step 5: Solve for x
    x = 2,872,066,690.26/88,254.78
  6. Step 6: Final answer
    x = 32,542.90

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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.