Home / 82,951.04-124,427.00-20,621.54

Finding the Fourth Proportional to 82,951.04, 124,427.00 and 20,621.54

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Solution

The fourth proportional to 82,951.04, 124,427.00 and 20,621.54 is: 30,932.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,951.04 : 124,427.00 = 20,621.54 : x
  2. Step 2: Convert to fraction form
    82,951.04/124,427.00 = 20,621.54/x
  3. Step 3: Cross multiply
    82,951.04x = 124,427.00 × 20,621.54
  4. Step 4: Simplify right side
    82,951.04x = 2,565,876,720.20
  5. Step 5: Solve for x
    x = 2,565,876,720.20/82,951.04
  6. Step 6: Final answer
    x = 30,932.42

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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.