Home / 80,439.24-120,501.90-52,653

Finding the Fourth Proportional to 80,439.24, 120,501.90 and 52,653

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Solution

The fourth proportional to 80,439.24, 120,501.90 and 52,653 is: 78,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,439.24 : 120,501.90 = 52,653 : x
  2. Step 2: Convert to fraction form
    80,439.24/120,501.90 = 52,653/x
  3. Step 3: Cross multiply
    80,439.24x = 120,501.90 × 52,653
  4. Step 4: Simplify right side
    80,439.24x = 6,344,786,540.70
  5. Step 5: Solve for x
    x = 6,344,786,540.70/80,439.24
  6. Step 6: Final answer
    x = 78,876.76

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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.