Home / 80,777.60-111,478.36-48,949.52

Finding the Fourth Proportional to 80,777.60, 111,478.36 and 48,949.52

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Solution

The fourth proportional to 80,777.60, 111,478.36 and 48,949.52 is: 67,553.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,777.60 : 111,478.36 = 48,949.52 : x
  2. Step 2: Convert to fraction form
    80,777.60/111,478.36 = 48,949.52/x
  3. Step 3: Cross multiply
    80,777.60x = 111,478.36 × 48,949.52
  4. Step 4: Simplify right side
    80,777.60x = 5,456,812,212.39
  5. Step 5: Solve for x
    x = 5,456,812,212.39/80,777.60
  6. Step 6: Final answer
    x = 67,553.53

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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.