Home / 90,588.16-125,023.19-54,778.43

Finding the Fourth Proportional to 90,588.16, 125,023.19 and 54,778.43

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Solution

The fourth proportional to 90,588.16, 125,023.19 and 54,778.43 is: 75,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,588.16 : 125,023.19 = 54,778.43 : x
  2. Step 2: Convert to fraction form
    90,588.16/125,023.19 = 54,778.43/x
  3. Step 3: Cross multiply
    90,588.16x = 125,023.19 × 54,778.43
  4. Step 4: Simplify right side
    90,588.16x = 6,848,573,573.62
  5. Step 5: Solve for x
    x = 6,848,573,573.62/90,588.16
  6. Step 6: Final answer
    x = 75,601.20

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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.