Home / 82,921.59-124,382.40-20,592.09

Finding the Fourth Proportional to 82,921.59, 124,382.40 and 20,592.09

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Solution

The fourth proportional to 82,921.59, 124,382.40 and 20,592.09 is: 30,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,921.59 : 124,382.40 = 20,592.09 : x
  2. Step 2: Convert to fraction form
    82,921.59/124,382.40 = 20,592.09/x
  3. Step 3: Cross multiply
    82,921.59x = 124,382.40 × 20,592.09
  4. Step 4: Simplify right side
    82,921.59x = 2,561,293,575.22
  5. Step 5: Solve for x
    x = 2,561,293,575.22/82,921.59
  6. Step 6: Final answer
    x = 30,888.14

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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.