Home / 80,874.21-121,333.15-24,712.78

Finding the Fourth Proportional to 80,874.21, 121,333.15 and 24,712.78

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Solution

The fourth proportional to 80,874.21, 121,333.15 and 24,712.78 is: 37,075.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,874.21 : 121,333.15 = 24,712.78 : x
  2. Step 2: Convert to fraction form
    80,874.21/121,333.15 = 24,712.78/x
  3. Step 3: Cross multiply
    80,874.21x = 121,333.15 × 24,712.78
  4. Step 4: Simplify right side
    80,874.21x = 2,998,479,442.66
  5. Step 5: Solve for x
    x = 2,998,479,442.66/80,874.21
  6. Step 6: Final answer
    x = 37,075.84

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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.