Home / 80,366.34-120,576.31-53,454.78

Finding the Fourth Proportional to 80,366.34, 120,576.31 and 53,454.78

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Solution

The fourth proportional to 80,366.34, 120,576.31 and 53,454.78 is: 80,199.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,366.34 : 120,576.31 = 53,454.78 : x
  2. Step 2: Convert to fraction form
    80,366.34/120,576.31 = 53,454.78/x
  3. Step 3: Cross multiply
    80,366.34x = 120,576.31 × 53,454.78
  4. Step 4: Simplify right side
    80,366.34x = 6,445,379,990.62
  5. Step 5: Solve for x
    x = 6,445,379,990.62/80,366.34
  6. Step 6: Final answer
    x = 80,199.99

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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.