Home / 57,608.20-86,331.30-45,782.20

Finding the Fourth Proportional to 57,608.20, 86,331.30 and 45,782.20

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Solution

The fourth proportional to 57,608.20, 86,331.30 and 45,782.20 is: 68,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,608.20 : 86,331.30 = 45,782.20 : x
  2. Step 2: Convert to fraction form
    57,608.20/86,331.30 = 45,782.20/x
  3. Step 3: Cross multiply
    57,608.20x = 86,331.30 × 45,782.20
  4. Step 4: Simplify right side
    57,608.20x = 3,952,436,842.86
  5. Step 5: Solve for x
    x = 3,952,436,842.86/57,608.20
  6. Step 6: Final answer
    x = 68,608.93

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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.