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Finding the Fourth Proportional to 86,517.30, 129,799.02 and 27,354.08

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Solution

The fourth proportional to 86,517.30, 129,799.02 and 27,354.08 is: 41,038.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,517.30 : 129,799.02 = 27,354.08 : x
  2. Step 2: Convert to fraction form
    86,517.30/129,799.02 = 27,354.08/x
  3. Step 3: Cross multiply
    86,517.30x = 129,799.02 × 27,354.08
  4. Step 4: Simplify right side
    86,517.30x = 3,550,532,777.00
  5. Step 5: Solve for x
    x = 3,550,532,777.00/86,517.30
  6. Step 6: Final answer
    x = 41,038.41

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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.