Home / 84,360.16-126,585.40-54,771.04

Finding the Fourth Proportional to 84,360.16, 126,585.40 and 54,771.04

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Solution

The fourth proportional to 84,360.16, 126,585.40 and 54,771.04 is: 82,185.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,360.16 : 126,585.40 = 54,771.04 : x
  2. Step 2: Convert to fraction form
    84,360.16/126,585.40 = 54,771.04/x
  3. Step 3: Cross multiply
    84,360.16x = 126,585.40 × 54,771.04
  4. Step 4: Simplify right side
    84,360.16x = 6,933,214,006.82
  5. Step 5: Solve for x
    x = 6,933,214,006.82/84,360.16
  6. Step 6: Final answer
    x = 82,185.88

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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.