Home / 80,487.74-111,073.50-50,290.57

Finding the Fourth Proportional to 80,487.74, 111,073.50 and 50,290.57

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Solution

The fourth proportional to 80,487.74, 111,073.50 and 50,290.57 is: 69,401.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,487.74 : 111,073.50 = 50,290.57 : x
  2. Step 2: Convert to fraction form
    80,487.74/111,073.50 = 50,290.57/x
  3. Step 3: Cross multiply
    80,487.74x = 111,073.50 × 50,290.57
  4. Step 4: Simplify right side
    80,487.74x = 5,585,949,349.21
  5. Step 5: Solve for x
    x = 5,585,949,349.21/80,487.74
  6. Step 6: Final answer
    x = 69,401.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.