Home / 86,195.20-129,292.78-27,036.04

Finding the Fourth Proportional to 86,195.20, 129,292.78 and 27,036.04

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Solution

The fourth proportional to 86,195.20, 129,292.78 and 27,036.04 is: 40,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,195.20 : 129,292.78 = 27,036.04 : x
  2. Step 2: Convert to fraction form
    86,195.20/129,292.78 = 27,036.04/x
  3. Step 3: Cross multiply
    86,195.20x = 129,292.78 × 27,036.04
  4. Step 4: Simplify right side
    86,195.20x = 3,495,564,771.79
  5. Step 5: Solve for x
    x = 3,495,564,771.79/86,195.20
  6. Step 6: Final answer
    x = 40,554.05

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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.