Home / 85,755.20-118,348.44-51,772.04

Finding the Fourth Proportional to 85,755.20, 118,348.44 and 51,772.04

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Solution

The fourth proportional to 85,755.20, 118,348.44 and 51,772.04 is: 71,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,755.20 : 118,348.44 = 51,772.04 : x
  2. Step 2: Convert to fraction form
    85,755.20/118,348.44 = 51,772.04/x
  3. Step 3: Cross multiply
    85,755.20x = 118,348.44 × 51,772.04
  4. Step 4: Simplify right side
    85,755.20x = 6,127,140,169.62
  5. Step 5: Solve for x
    x = 6,127,140,169.62/85,755.20
  6. Step 6: Final answer
    x = 71,449.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.