Home / 80,336.98-120,348.63-38,157.04

Finding the Fourth Proportional to 80,336.98, 120,348.63 and 38,157.04

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Solution

The fourth proportional to 80,336.98, 120,348.63 and 38,157.04 is: 57,161.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,336.98 : 120,348.63 = 38,157.04 : x
  2. Step 2: Convert to fraction form
    80,336.98/120,348.63 = 38,157.04/x
  3. Step 3: Cross multiply
    80,336.98x = 120,348.63 × 38,157.04
  4. Step 4: Simplify right side
    80,336.98x = 4,592,147,488.86
  5. Step 5: Solve for x
    x = 4,592,147,488.86/80,336.98
  6. Step 6: Final answer
    x = 57,161.07

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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.