Home / 87,862.50-121,272.12-50,158.62

Finding the Fourth Proportional to 87,862.50, 121,272.12 and 50,158.62

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Solution

The fourth proportional to 87,862.50, 121,272.12 and 50,158.62 is: 69,231.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,862.50 : 121,272.12 = 50,158.62 : x
  2. Step 2: Convert to fraction form
    87,862.50/121,272.12 = 50,158.62/x
  3. Step 3: Cross multiply
    87,862.50x = 121,272.12 × 50,158.62
  4. Step 4: Simplify right side
    87,862.50x = 6,082,842,183.67
  5. Step 5: Solve for x
    x = 6,082,842,183.67/87,862.50
  6. Step 6: Final answer
    x = 69,231.38

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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.