Home / 53,614.80-80,429.40-18,565.20

Finding the Fourth Proportional to 53,614.80, 80,429.40 and 18,565.20

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Solution

The fourth proportional to 53,614.80, 80,429.40 and 18,565.20 is: 27,850.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,614.80 : 80,429.40 = 18,565.20 : x
  2. Step 2: Convert to fraction form
    53,614.80/80,429.40 = 18,565.20/x
  3. Step 3: Cross multiply
    53,614.80x = 80,429.40 × 18,565.20
  4. Step 4: Simplify right side
    53,614.80x = 1,493,187,896.88
  5. Step 5: Solve for x
    x = 1,493,187,896.88/53,614.80
  6. Step 6: Final answer
    x = 27,850.29

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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.