Home / 90,610.89-125,022.85-54,800.20

Finding the Fourth Proportional to 90,610.89, 125,022.85 and 54,800.20

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Solution

The fourth proportional to 90,610.89, 125,022.85 and 54,800.20 is: 75,612.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,610.89 : 125,022.85 = 54,800.20 : x
  2. Step 2: Convert to fraction form
    90,610.89/125,022.85 = 54,800.20/x
  3. Step 3: Cross multiply
    90,610.89x = 125,022.85 × 54,800.20
  4. Step 4: Simplify right side
    90,610.89x = 6,851,277,184.57
  5. Step 5: Solve for x
    x = 6,851,277,184.57/90,610.89
  6. Step 6: Final answer
    x = 75,612.07

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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.