Home / 87,743.28-121,076.28-51,934.80

Finding the Fourth Proportional to 87,743.28, 121,076.28 and 51,934.80

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Solution

The fourth proportional to 87,743.28, 121,076.28 and 51,934.80 is: 71,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,743.28 : 121,076.28 = 51,934.80 : x
  2. Step 2: Convert to fraction form
    87,743.28/121,076.28 = 51,934.80/x
  3. Step 3: Cross multiply
    87,743.28x = 121,076.28 × 51,934.80
  4. Step 4: Simplify right side
    87,743.28x = 6,288,072,386.54
  5. Step 5: Solve for x
    x = 6,288,072,386.54/87,743.28
  6. Step 6: Final answer
    x = 71,664.43

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1.5x scale

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.