Home / 86,493.28-129,743.78-26,517.44

Finding the Fourth Proportional to 86,493.28, 129,743.78 and 26,517.44

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Solution

The fourth proportional to 86,493.28, 129,743.78 and 26,517.44 is: 39,777.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,493.28 : 129,743.78 = 26,517.44 : x
  2. Step 2: Convert to fraction form
    86,493.28/129,743.78 = 26,517.44/x
  3. Step 3: Cross multiply
    86,493.28x = 129,743.78 × 26,517.44
  4. Step 4: Simplify right side
    86,493.28x = 3,440,472,901.52
  5. Step 5: Solve for x
    x = 3,440,472,901.52/86,493.28
  6. Step 6: Final answer
    x = 39,777.34

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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.