Home / 85,757.28-118,235.52-55,489.20

Finding the Fourth Proportional to 85,757.28, 118,235.52 and 55,489.20

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Solution

The fourth proportional to 85,757.28, 118,235.52 and 55,489.20 is: 76,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,757.28 : 118,235.52 = 55,489.20 : x
  2. Step 2: Convert to fraction form
    85,757.28/118,235.52 = 55,489.20/x
  3. Step 3: Cross multiply
    85,757.28x = 118,235.52 × 55,489.20
  4. Step 4: Simplify right side
    85,757.28x = 6,560,794,416.38
  5. Step 5: Solve for x
    x = 6,560,794,416.38/85,757.28
  6. Step 6: Final answer
    x = 76,504.23

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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.