Home / 53,932.40-80,935.05-18,872.36

Finding the Fourth Proportional to 53,932.40, 80,935.05 and 18,872.36

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Solution

The fourth proportional to 53,932.40, 80,935.05 and 18,872.36 is: 28,321.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,932.40 : 80,935.05 = 18,872.36 : x
  2. Step 2: Convert to fraction form
    53,932.40/80,935.05 = 18,872.36/x
  3. Step 3: Cross multiply
    53,932.40x = 80,935.05 × 18,872.36
  4. Step 4: Simplify right side
    53,932.40x = 1,527,435,305.86
  5. Step 5: Solve for x
    x = 1,527,435,305.86/53,932.40
  6. Step 6: Final answer
    x = 28,321.29

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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.