Home / 90,849.24-125,342.78-55,027.80

Finding the Fourth Proportional to 90,849.24, 125,342.78 and 55,027.80

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Solution

The fourth proportional to 90,849.24, 125,342.78 and 55,027.80 is: 75,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,849.24 : 125,342.78 = 55,027.80 : x
  2. Step 2: Convert to fraction form
    90,849.24/125,342.78 = 55,027.80/x
  3. Step 3: Cross multiply
    90,849.24x = 125,342.78 × 55,027.80
  4. Step 4: Simplify right side
    90,849.24x = 6,897,337,429.28
  5. Step 5: Solve for x
    x = 6,897,337,429.28/90,849.24
  6. Step 6: Final answer
    x = 75,920.69

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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.