Home / 54,939.20-82,397.25-15,485.72

Finding the Fourth Proportional to 54,939.20, 82,397.25 and 15,485.72

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Solution

The fourth proportional to 54,939.20, 82,397.25 and 15,485.72 is: 23,225.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,939.20 : 82,397.25 = 15,485.72 : x
  2. Step 2: Convert to fraction form
    54,939.20/82,397.25 = 15,485.72/x
  3. Step 3: Cross multiply
    54,939.20x = 82,397.25 × 15,485.72
  4. Step 4: Simplify right side
    54,939.20x = 1,275,980,330.28
  5. Step 5: Solve for x
    x = 1,275,980,330.28/54,939.20
  6. Step 6: Final answer
    x = 23,225.32

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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.