Home / 51,790.27-71,470.47-29,128.90

Finding the Fourth Proportional to 51,790.27, 71,470.47 and 29,128.90

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Solution

The fourth proportional to 51,790.27, 71,470.47 and 29,128.90 is: 40,197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,790.27 : 71,470.47 = 29,128.90 : x
  2. Step 2: Convert to fraction form
    51,790.27/71,470.47 = 29,128.90/x
  3. Step 3: Cross multiply
    51,790.27x = 71,470.47 × 29,128.90
  4. Step 4: Simplify right side
    51,790.27x = 2,081,856,173.58
  5. Step 5: Solve for x
    x = 2,081,856,173.58/51,790.27
  6. Step 6: Final answer
    x = 40,197.82

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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.