Home / 82,889.76-124,309.92-30,287.04

Finding the Fourth Proportional to 82,889.76, 124,309.92 and 30,287.04

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Solution

The fourth proportional to 82,889.76, 124,309.92 and 30,287.04 is: 45,421.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,889.76 : 124,309.92 = 30,287.04 : x
  2. Step 2: Convert to fraction form
    82,889.76/124,309.92 = 30,287.04/x
  3. Step 3: Cross multiply
    82,889.76x = 124,309.92 × 30,287.04
  4. Step 4: Simplify right side
    82,889.76x = 3,764,979,519.44
  5. Step 5: Solve for x
    x = 3,764,979,519.44/82,889.76
  6. Step 6: Final answer
    x = 45,421.53

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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.