Home / 53,179.80-79,745.31-18,105.18

Finding the Fourth Proportional to 53,179.80, 79,745.31 and 18,105.18

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Solution

The fourth proportional to 53,179.80, 79,745.31 and 18,105.18 is: 27,149.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,179.80 : 79,745.31 = 18,105.18 : x
  2. Step 2: Convert to fraction form
    53,179.80/79,745.31 = 18,105.18/x
  3. Step 3: Cross multiply
    53,179.80x = 79,745.31 × 18,105.18
  4. Step 4: Simplify right side
    53,179.80x = 1,443,803,191.71
  5. Step 5: Solve for x
    x = 1,443,803,191.71/53,179.80
  6. Step 6: Final answer
    x = 27,149.47

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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.