Home / 54,785.76-82,141.56-21,485.04

Finding the Fourth Proportional to 54,785.76, 82,141.56 and 21,485.04

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Solution

The fourth proportional to 54,785.76, 82,141.56 and 21,485.04 is: 32,213.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,785.76 : 82,141.56 = 21,485.04 : x
  2. Step 2: Convert to fraction form
    54,785.76/82,141.56 = 21,485.04/x
  3. Step 3: Cross multiply
    54,785.76x = 82,141.56 × 21,485.04
  4. Step 4: Simplify right side
    54,785.76x = 1,764,814,702.26
  5. Step 5: Solve for x
    x = 1,764,814,702.26/54,785.76
  6. Step 6: Final answer
    x = 32,213.02

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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.