Home / 54,437.93-81,668.57-18,900.37

Finding the Fourth Proportional to 54,437.93, 81,668.57 and 18,900.37

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Solution

The fourth proportional to 54,437.93, 81,668.57 and 18,900.37 is: 28,354.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,437.93 : 81,668.57 = 18,900.37 : x
  2. Step 2: Convert to fraction form
    54,437.93/81,668.57 = 18,900.37/x
  3. Step 3: Cross multiply
    54,437.93x = 81,668.57 × 18,900.37
  4. Step 4: Simplify right side
    54,437.93x = 1,543,566,197.95
  5. Step 5: Solve for x
    x = 1,543,566,197.95/54,437.93
  6. Step 6: Final answer
    x = 28,354.61

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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.