Home / 80,803.40-121,277.10-47,481.80

Finding the Fourth Proportional to 80,803.40, 121,277.10 and 47,481.80

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Solution

The fourth proportional to 80,803.40, 121,277.10 and 47,481.80 is: 71,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,803.40 : 121,277.10 = 47,481.80 : x
  2. Step 2: Convert to fraction form
    80,803.40/121,277.10 = 47,481.80/x
  3. Step 3: Cross multiply
    80,803.40x = 121,277.10 × 47,481.80
  4. Step 4: Simplify right side
    80,803.40x = 5,758,455,006.78
  5. Step 5: Solve for x
    x = 5,758,455,006.78/80,803.40
  6. Step 6: Final answer
    x = 71,265.01

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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.