Home / 71,832.18-107,739.96-19,245.90

Finding the Fourth Proportional to 71,832.18, 107,739.96 and 19,245.90

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Solution

The fourth proportional to 71,832.18, 107,739.96 and 19,245.90 is: 28,866.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,832.18 : 107,739.96 = 19,245.90 : x
  2. Step 2: Convert to fraction form
    71,832.18/107,739.96 = 19,245.90/x
  3. Step 3: Cross multiply
    71,832.18x = 107,739.96 × 19,245.90
  4. Step 4: Simplify right side
    71,832.18x = 2,073,552,496.16
  5. Step 5: Solve for x
    x = 2,073,552,496.16/71,832.18
  6. Step 6: Final answer
    x = 28,866.62

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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.