Home / 51,761.65-71,429.26-28,791.35

Finding the Fourth Proportional to 51,761.65, 71,429.26 and 28,791.35

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Solution

The fourth proportional to 51,761.65, 71,429.26 and 28,791.35 is: 39,731.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,761.65 : 71,429.26 = 28,791.35 : x
  2. Step 2: Convert to fraction form
    51,761.65/71,429.26 = 28,791.35/x
  3. Step 3: Cross multiply
    51,761.65x = 71,429.26 × 28,791.35
  4. Step 4: Simplify right side
    51,761.65x = 2,056,544,824.90
  5. Step 5: Solve for x
    x = 2,056,544,824.90/51,761.65
  6. Step 6: Final answer
    x = 39,731.05

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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.