Home / 83,919.58-115,769.90-49,908.98

Finding the Fourth Proportional to 83,919.58, 115,769.90 and 49,908.98

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Solution

The fourth proportional to 83,919.58, 115,769.90 and 49,908.98 is: 68,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,919.58 : 115,769.90 = 49,908.98 : x
  2. Step 2: Convert to fraction form
    83,919.58/115,769.90 = 49,908.98/x
  3. Step 3: Cross multiply
    83,919.58x = 115,769.90 × 49,908.98
  4. Step 4: Simplify right side
    83,919.58x = 5,777,958,037.90
  5. Step 5: Solve for x
    x = 5,777,958,037.90/83,919.58
  6. Step 6: Final answer
    x = 68,851.13

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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.