Home / 77,929.08-107,470.38-49,198.83

Finding the Fourth Proportional to 77,929.08, 107,470.38 and 49,198.83

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Solution

The fourth proportional to 77,929.08, 107,470.38 and 49,198.83 is: 67,849.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,929.08 : 107,470.38 = 49,198.83 : x
  2. Step 2: Convert to fraction form
    77,929.08/107,470.38 = 49,198.83/x
  3. Step 3: Cross multiply
    77,929.08x = 107,470.38 × 49,198.83
  4. Step 4: Simplify right side
    77,929.08x = 5,287,416,460.39
  5. Step 5: Solve for x
    x = 5,287,416,460.39/77,929.08
  6. Step 6: Final answer
    x = 67,849.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.