Home / 49,117.86-67,790.84-28,979.74

Finding the Fourth Proportional to 49,117.86, 67,790.84 and 28,979.74

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Solution

The fourth proportional to 49,117.86, 67,790.84 and 28,979.74 is: 39,996.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,117.86 : 67,790.84 = 28,979.74 : x
  2. Step 2: Convert to fraction form
    49,117.86/67,790.84 = 28,979.74/x
  3. Step 3: Cross multiply
    49,117.86x = 67,790.84 × 28,979.74
  4. Step 4: Simplify right side
    49,117.86x = 1,964,560,917.58
  5. Step 5: Solve for x
    x = 1,964,560,917.58/49,117.86
  6. Step 6: Final answer
    x = 39,996.88

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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.