Home / 51,986.85-71,761.29-40,479.01

Finding the Fourth Proportional to 51,986.85, 71,761.29 and 40,479.01

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Solution

The fourth proportional to 51,986.85, 71,761.29 and 40,479.01 is: 55,876.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,986.85 : 71,761.29 = 40,479.01 : x
  2. Step 2: Convert to fraction form
    51,986.85/71,761.29 = 40,479.01/x
  3. Step 3: Cross multiply
    51,986.85x = 71,761.29 × 40,479.01
  4. Step 4: Simplify right side
    51,986.85x = 2,904,825,414.32
  5. Step 5: Solve for x
    x = 2,904,825,414.32/51,986.85
  6. Step 6: Final answer
    x = 55,876.16

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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.