Home / 85,869.61-118,475.82-55,656.20

Finding the Fourth Proportional to 85,869.61, 118,475.82 and 55,656.20

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Solution

The fourth proportional to 85,869.61, 118,475.82 and 55,656.20 is: 76,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,869.61 : 118,475.82 = 55,656.20 : x
  2. Step 2: Convert to fraction form
    85,869.61/118,475.82 = 55,656.20/x
  3. Step 3: Cross multiply
    85,869.61x = 118,475.82 × 55,656.20
  4. Step 4: Simplify right side
    85,869.61x = 6,593,914,229.27
  5. Step 5: Solve for x
    x = 6,593,914,229.27/85,869.61
  6. Step 6: Final answer
    x = 76,789.85

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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.