Home / 77,339.20-115,915.20-32,872.60

Finding the Fourth Proportional to 77,339.20, 115,915.20 and 32,872.60

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Solution

The fourth proportional to 77,339.20, 115,915.20 and 32,872.60 is: 49,269.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,339.20 : 115,915.20 = 32,872.60 : x
  2. Step 2: Convert to fraction form
    77,339.20/115,915.20 = 32,872.60/x
  3. Step 3: Cross multiply
    77,339.20x = 115,915.20 × 32,872.60
  4. Step 4: Simplify right side
    77,339.20x = 3,810,434,003.52
  5. Step 5: Solve for x
    x = 3,810,434,003.52/77,339.20
  6. Step 6: Final answer
    x = 49,269.12

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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.