Home / 77,730.86-107,299.32-49,044.62

Finding the Fourth Proportional to 77,730.86, 107,299.32 and 49,044.62

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Solution

The fourth proportional to 77,730.86, 107,299.32 and 49,044.62 is: 67,700.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,730.86 : 107,299.32 = 49,044.62 : x
  2. Step 2: Convert to fraction form
    77,730.86/107,299.32 = 49,044.62/x
  3. Step 3: Cross multiply
    77,730.86x = 107,299.32 × 49,044.62
  4. Step 4: Simplify right side
    77,730.86x = 5,262,454,375.66
  5. Step 5: Solve for x
    x = 5,262,454,375.66/77,730.86
  6. Step 6: Final answer
    x = 67,700.97

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1.5x scale

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.