Home / 87,923.78-121,334.76-47,638.33

Finding the Fourth Proportional to 87,923.78, 121,334.76 and 47,638.33

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Solution

The fourth proportional to 87,923.78, 121,334.76 and 47,638.33 is: 65,740.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,923.78 : 121,334.76 = 47,638.33 : x
  2. Step 2: Convert to fraction form
    87,923.78/121,334.76 = 47,638.33/x
  3. Step 3: Cross multiply
    87,923.78x = 121,334.76 × 47,638.33
  4. Step 4: Simplify right side
    87,923.78x = 5,780,185,034.01
  5. Step 5: Solve for x
    x = 5,780,185,034.01/87,923.78
  6. Step 6: Final answer
    x = 65,740.86

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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.