Home / 76,951.20-115,340.40-39,496.80

Finding the Fourth Proportional to 76,951.20, 115,340.40 and 39,496.80

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Solution

The fourth proportional to 76,951.20, 115,340.40 and 39,496.80 is: 59,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,951.20 : 115,340.40 = 39,496.80 : x
  2. Step 2: Convert to fraction form
    76,951.20/115,340.40 = 39,496.80/x
  3. Step 3: Cross multiply
    76,951.20x = 115,340.40 × 39,496.80
  4. Step 4: Simplify right side
    76,951.20x = 4,555,576,710.72
  5. Step 5: Solve for x
    x = 4,555,576,710.72/76,951.20
  6. Step 6: Final answer
    x = 59,200.85

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1.5x scale

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.