Home / 51,377.78-70,899.92-28,716.86

Finding the Fourth Proportional to 51,377.78, 70,899.92 and 28,716.86

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Solution

The fourth proportional to 51,377.78, 70,899.92 and 28,716.86 is: 39,628.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,377.78 : 70,899.92 = 28,716.86 : x
  2. Step 2: Convert to fraction form
    51,377.78/70,899.92 = 28,716.86/x
  3. Step 3: Cross multiply
    51,377.78x = 70,899.92 × 28,716.86
  4. Step 4: Simplify right side
    51,377.78x = 2,036,023,076.65
  5. Step 5: Solve for x
    x = 2,036,023,076.65/51,377.78
  6. Step 6: Final answer
    x = 39,628.48

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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.