Home / 76,711.53-115,115.20-29,330.60

Finding the Fourth Proportional to 76,711.53, 115,115.20 and 29,330.60

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Solution

The fourth proportional to 76,711.53, 115,115.20 and 29,330.60 is: 44,014.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,711.53 : 115,115.20 = 29,330.60 : x
  2. Step 2: Convert to fraction form
    76,711.53/115,115.20 = 29,330.60/x
  3. Step 3: Cross multiply
    76,711.53x = 115,115.20 × 29,330.60
  4. Step 4: Simplify right side
    76,711.53x = 3,376,398,099.58
  5. Step 5: Solve for x
    x = 3,376,398,099.58/76,711.53
  6. Step 6: Final answer
    x = 44,014.22

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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.