Home / 76,758.28-115,149.75-32,391.60

Finding the Fourth Proportional to 76,758.28, 115,149.75 and 32,391.60

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Solution

The fourth proportional to 76,758.28, 115,149.75 and 32,391.60 is: 48,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,758.28 : 115,149.75 = 32,391.60 : x
  2. Step 2: Convert to fraction form
    76,758.28/115,149.75 = 32,391.60/x
  3. Step 3: Cross multiply
    76,758.28x = 115,149.75 × 32,391.60
  4. Step 4: Simplify right side
    76,758.28x = 3,729,884,271.02
  5. Step 5: Solve for x
    x = 3,729,884,271.02/76,758.28
  6. Step 6: Final answer
    x = 48,592.60

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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.