Home / 82,928.08-124,301.72-40,724.40

Finding the Fourth Proportional to 82,928.08, 124,301.72 and 40,724.40

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Solution

The fourth proportional to 82,928.08, 124,301.72 and 40,724.40 is: 61,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,928.08 : 124,301.72 = 40,724.40 : x
  2. Step 2: Convert to fraction form
    82,928.08/124,301.72 = 40,724.40/x
  3. Step 3: Cross multiply
    82,928.08x = 124,301.72 × 40,724.40
  4. Step 4: Simplify right side
    82,928.08x = 5,062,112,965.97
  5. Step 5: Solve for x
    x = 5,062,112,965.97/82,928.08
  6. Step 6: Final answer
    x = 61,042.21

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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.