Home / 90,811.83-136,217.75-27,631.83

Finding the Fourth Proportional to 90,811.83, 136,217.75 and 27,631.83

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Solution

The fourth proportional to 90,811.83, 136,217.75 and 27,631.83 is: 41,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,811.83 : 136,217.75 = 27,631.83 : x
  2. Step 2: Convert to fraction form
    90,811.83/136,217.75 = 27,631.83/x
  3. Step 3: Cross multiply
    90,811.83x = 136,217.75 × 27,631.83
  4. Step 4: Simplify right side
    90,811.83x = 3,763,945,572.82
  5. Step 5: Solve for x
    x = 3,763,945,572.82/90,811.83
  6. Step 6: Final answer
    x = 41,447.75

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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.