Home / 51,880.91-71,722.87-51,407.06

Finding the Fourth Proportional to 51,880.91, 71,722.87 and 51,407.06

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Solution

The fourth proportional to 51,880.91, 71,722.87 and 51,407.06 is: 71,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,880.91 : 71,722.87 = 51,407.06 : x
  2. Step 2: Convert to fraction form
    51,880.91/71,722.87 = 51,407.06/x
  3. Step 3: Cross multiply
    51,880.91x = 71,722.87 × 51,407.06
  4. Step 4: Simplify right side
    51,880.91x = 3,687,061,394.33
  5. Step 5: Solve for x
    x = 3,687,061,394.33/51,880.91
  6. Step 6: Final answer
    x = 71,067.79

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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.