Home / 276,042.10-414,063.21-86,502.43

Finding the Fourth Proportional to 276,042.10, 414,063.21 and 86,502.43

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Solution

The fourth proportional to 276,042.10, 414,063.21 and 86,502.43 is: 129,753.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,042.10 : 414,063.21 = 86,502.43 : x
  2. Step 2: Convert to fraction form
    276,042.10/414,063.21 = 86,502.43/x
  3. Step 3: Cross multiply
    276,042.10x = 414,063.21 × 86,502.43
  4. Step 4: Simplify right side
    276,042.10x = 35,817,473,838.60
  5. Step 5: Solve for x
    x = 35,817,473,838.60/276,042.10
  6. Step 6: Final answer
    x = 129,753.66

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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.