Home / 85,845.20-118,414.04-56,773.52

Finding the Fourth Proportional to 85,845.20, 118,414.04 and 56,773.52

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Solution

The fourth proportional to 85,845.20, 118,414.04 and 56,773.52 is: 78,312.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,845.20 : 118,414.04 = 56,773.52 : x
  2. Step 2: Convert to fraction form
    85,845.20/118,414.04 = 56,773.52/x
  3. Step 3: Cross multiply
    85,845.20x = 118,414.04 × 56,773.52
  4. Step 4: Simplify right side
    85,845.20x = 6,722,781,868.22
  5. Step 5: Solve for x
    x = 6,722,781,868.22/85,845.20
  6. Step 6: Final answer
    x = 78,312.85

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1.5x scale

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.