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Finding the Fourth Proportional to 90,279.66, 135,426.79 and 27,095.41

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Solution

The fourth proportional to 90,279.66, 135,426.79 and 27,095.41 is: 40,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,279.66 : 135,426.79 = 27,095.41 : x
  2. Step 2: Convert to fraction form
    90,279.66/135,426.79 = 27,095.41/x
  3. Step 3: Cross multiply
    90,279.66x = 135,426.79 × 27,095.41
  4. Step 4: Simplify right side
    90,279.66x = 3,669,444,450.77
  5. Step 5: Solve for x
    x = 3,669,444,450.77/90,279.66
  6. Step 6: Final answer
    x = 40,645.30

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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.