Home / 82,982.40-124,473.36-20,652.88

Finding the Fourth Proportional to 82,982.40, 124,473.36 and 20,652.88

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Solution

The fourth proportional to 82,982.40, 124,473.36 and 20,652.88 is: 30,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,982.40 : 124,473.36 = 20,652.88 : x
  2. Step 2: Convert to fraction form
    82,982.40/124,473.36 = 20,652.88/x
  3. Step 3: Cross multiply
    82,982.40x = 124,473.36 × 20,652.88
  4. Step 4: Simplify right side
    82,982.40x = 2,570,733,367.28
  5. Step 5: Solve for x
    x = 2,570,733,367.28/82,982.40
  6. Step 6: Final answer
    x = 30,979.26

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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.