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Finding the Fourth Proportional to 80,580.62, 111,201.05 and 48,749.45

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Solution

The fourth proportional to 80,580.62, 111,201.05 and 48,749.45 is: 67,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,580.62 : 111,201.05 = 48,749.45 : x
  2. Step 2: Convert to fraction form
    80,580.62/111,201.05 = 48,749.45/x
  3. Step 3: Cross multiply
    80,580.62x = 111,201.05 × 48,749.45
  4. Step 4: Simplify right side
    80,580.62x = 5,420,989,592.79
  5. Step 5: Solve for x
    x = 5,420,989,592.79/80,580.62
  6. Step 6: Final answer
    x = 67,274.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.