Home / 54,879.70-82,319.55-15,438.10

Finding the Fourth Proportional to 54,879.70, 82,319.55 and 15,438.10

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Solution

The fourth proportional to 54,879.70, 82,319.55 and 15,438.10 is: 23,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,879.70 : 82,319.55 = 15,438.10 : x
  2. Step 2: Convert to fraction form
    54,879.70/82,319.55 = 15,438.10/x
  3. Step 3: Cross multiply
    54,879.70x = 82,319.55 × 15,438.10
  4. Step 4: Simplify right side
    54,879.70x = 1,270,857,444.86
  5. Step 5: Solve for x
    x = 1,270,857,444.86/54,879.70
  6. Step 6: Final answer
    x = 23,157.15

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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.