Home / 80,108.72-120,266.96-53,624.15

Finding the Fourth Proportional to 80,108.72, 120,266.96 and 53,624.15

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Solution

The fourth proportional to 80,108.72, 120,266.96 and 53,624.15 is: 80,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,108.72 : 120,266.96 = 53,624.15 : x
  2. Step 2: Convert to fraction form
    80,108.72/120,266.96 = 53,624.15/x
  3. Step 3: Cross multiply
    80,108.72x = 120,266.96 × 53,624.15
  4. Step 4: Simplify right side
    80,108.72x = 6,449,213,503.08
  5. Step 5: Solve for x
    x = 6,449,213,503.08/80,108.72
  6. Step 6: Final answer
    x = 80,505.76

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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.