Home / 82,769.40-124,154.10-30,216.60

Finding the Fourth Proportional to 82,769.40, 124,154.10 and 30,216.60

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Solution

The fourth proportional to 82,769.40, 124,154.10 and 30,216.60 is: 45,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,769.40 : 124,154.10 = 30,216.60 : x
  2. Step 2: Convert to fraction form
    82,769.40/124,154.10 = 30,216.60/x
  3. Step 3: Cross multiply
    82,769.40x = 124,154.10 × 30,216.60
  4. Step 4: Simplify right side
    82,769.40x = 3,751,514,778.06
  5. Step 5: Solve for x
    x = 3,751,514,778.06/82,769.40
  6. Step 6: Final answer
    x = 45,324.90

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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.