Home / 56,789.15-85,236.48-28,729.04

Finding the Fourth Proportional to 56,789.15, 85,236.48 and 28,729.04

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Solution

The fourth proportional to 56,789.15, 85,236.48 and 28,729.04 is: 43,120.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,789.15 : 85,236.48 = 28,729.04 : x
  2. Step 2: Convert to fraction form
    56,789.15/85,236.48 = 28,729.04/x
  3. Step 3: Cross multiply
    56,789.15x = 85,236.48 × 28,729.04
  4. Step 4: Simplify right side
    56,789.15x = 2,448,761,817.20
  5. Step 5: Solve for x
    x = 2,448,761,817.20/56,789.15
  6. Step 6: Final answer
    x = 43,120.24

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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.