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Finding the Fourth Proportional to 80,793.90, 121,190.85 and 52,800.30

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Solution

The fourth proportional to 80,793.90, 121,190.85 and 52,800.30 is: 79,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,793.90 : 121,190.85 = 52,800.30 : x
  2. Step 2: Convert to fraction form
    80,793.90/121,190.85 = 52,800.30/x
  3. Step 3: Cross multiply
    80,793.90x = 121,190.85 × 52,800.30
  4. Step 4: Simplify right side
    80,793.90x = 6,398,913,237.26
  5. Step 5: Solve for x
    x = 6,398,913,237.26/80,793.90
  6. Step 6: Final answer
    x = 79,200.45

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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.