Home / 80,063.16-120,119.04-42,616.86

Finding the Fourth Proportional to 80,063.16, 120,119.04 and 42,616.86

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Solution

The fourth proportional to 80,063.16, 120,119.04 and 42,616.86 is: 63,938.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,063.16 : 120,119.04 = 42,616.86 : x
  2. Step 2: Convert to fraction form
    80,063.16/120,119.04 = 42,616.86/x
  3. Step 3: Cross multiply
    80,063.16x = 120,119.04 × 42,616.86
  4. Step 4: Simplify right side
    80,063.16x = 5,119,096,311.01
  5. Step 5: Solve for x
    x = 5,119,096,311.01/80,063.16
  6. Step 6: Final answer
    x = 63,938.22

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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.