Home / 50,872.39-70,122.98-40,099.79

Finding the Fourth Proportional to 50,872.39, 70,122.98 and 40,099.79

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Solution

The fourth proportional to 50,872.39, 70,122.98 and 40,099.79 is: 55,273.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,872.39 : 70,122.98 = 40,099.79 : x
  2. Step 2: Convert to fraction form
    50,872.39/70,122.98 = 40,099.79/x
  3. Step 3: Cross multiply
    50,872.39x = 70,122.98 × 40,099.79
  4. Step 4: Simplify right side
    50,872.39x = 2,811,917,047.73
  5. Step 5: Solve for x
    x = 2,811,917,047.73/50,872.39
  6. Step 6: Final answer
    x = 55,273.94

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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.