Home / 90,745.89-136,118.79-27,565.76

Finding the Fourth Proportional to 90,745.89, 136,118.79 and 27,565.76

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Solution

The fourth proportional to 90,745.89, 136,118.79 and 27,565.76 is: 41,348.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,745.89 : 136,118.79 = 27,565.76 : x
  2. Step 2: Convert to fraction form
    90,745.89/136,118.79 = 27,565.76/x
  3. Step 3: Cross multiply
    90,745.89x = 136,118.79 × 27,565.76
  4. Step 4: Simplify right side
    90,745.89x = 3,752,218,099.10
  5. Step 5: Solve for x
    x = 3,752,218,099.10/90,745.89
  6. Step 6: Final answer
    x = 41,348.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.