Home / 87,991.40-132,026.34-40,581

Finding the Fourth Proportional to 87,991.40, 132,026.34 and 40,581

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Solution

The fourth proportional to 87,991.40, 132,026.34 and 40,581 is: 60,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,991.40 : 132,026.34 = 40,581 : x
  2. Step 2: Convert to fraction form
    87,991.40/132,026.34 = 40,581/x
  3. Step 3: Cross multiply
    87,991.40x = 132,026.34 × 40,581
  4. Step 4: Simplify right side
    87,991.40x = 5,357,760,998.65
  5. Step 5: Solve for x
    x = 5,357,760,998.65/87,991.40
  6. Step 6: Final answer
    x = 60,889.60

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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.