Home / 80,961.72-121,442.88-24,801.60

Finding the Fourth Proportional to 80,961.72, 121,442.88 and 24,801.60

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Solution

The fourth proportional to 80,961.72, 121,442.88 and 24,801.60 is: 37,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,961.72 : 121,442.88 = 24,801.60 : x
  2. Step 2: Convert to fraction form
    80,961.72/121,442.88 = 24,801.60/x
  3. Step 3: Cross multiply
    80,961.72x = 121,442.88 × 24,801.60
  4. Step 4: Simplify right side
    80,961.72x = 3,011,977,732.61
  5. Step 5: Solve for x
    x = 3,011,977,732.61/80,961.72
  6. Step 6: Final answer
    x = 37,202.49

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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.