Home / 80,778.90-121,185.83-24,617.53

Finding the Fourth Proportional to 80,778.90, 121,185.83 and 24,617.53

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Solution

The fourth proportional to 80,778.90, 121,185.83 and 24,617.53 is: 36,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,778.90 : 121,185.83 = 24,617.53 : x
  2. Step 2: Convert to fraction form
    80,778.90/121,185.83 = 24,617.53/x
  3. Step 3: Cross multiply
    80,778.90x = 121,185.83 × 24,617.53
  4. Step 4: Simplify right side
    80,778.90x = 2,983,295,076.58
  5. Step 5: Solve for x
    x = 2,983,295,076.58/80,778.90
  6. Step 6: Final answer
    x = 36,931.61

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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.