Home / 86,581.10-129,871.65-49,614.70

Finding the Fourth Proportional to 86,581.10, 129,871.65 and 49,614.70

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Solution

The fourth proportional to 86,581.10, 129,871.65 and 49,614.70 is: 74,422.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,581.10 : 129,871.65 = 49,614.70 : x
  2. Step 2: Convert to fraction form
    86,581.10/129,871.65 = 49,614.70/x
  3. Step 3: Cross multiply
    86,581.10x = 129,871.65 × 49,614.70
  4. Step 4: Simplify right side
    86,581.10x = 6,443,542,953.26
  5. Step 5: Solve for x
    x = 6,443,542,953.26/86,581.10
  6. Step 6: Final answer
    x = 74,422.05

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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.