Home / 73,034.86-109,555.03-20,442.98

Finding the Fourth Proportional to 73,034.86, 109,555.03 and 20,442.98

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Solution

The fourth proportional to 73,034.86, 109,555.03 and 20,442.98 is: 30,665.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,034.86 : 109,555.03 = 20,442.98 : x
  2. Step 2: Convert to fraction form
    73,034.86/109,555.03 = 20,442.98/x
  3. Step 3: Cross multiply
    73,034.86x = 109,555.03 × 20,442.98
  4. Step 4: Simplify right side
    73,034.86x = 2,239,631,287.19
  5. Step 5: Solve for x
    x = 2,239,631,287.19/73,034.86
  6. Step 6: Final answer
    x = 30,665.24

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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.