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Finding the Fourth Proportional to 80,888.80, 121,311.60 and 24,728.80

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Solution

The fourth proportional to 80,888.80, 121,311.60 and 24,728.80 is: 37,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,888.80 : 121,311.60 = 24,728.80 : x
  2. Step 2: Convert to fraction form
    80,888.80/121,311.60 = 24,728.80/x
  3. Step 3: Cross multiply
    80,888.80x = 121,311.60 × 24,728.80
  4. Step 4: Simplify right side
    80,888.80x = 2,999,890,294.08
  5. Step 5: Solve for x
    x = 2,999,890,294.08/80,888.80
  6. Step 6: Final answer
    x = 37,086.60

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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.