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Finding the Fourth Proportional to 90,523.62, 135,767.84 and 45,532.98

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Solution

The fourth proportional to 90,523.62, 135,767.84 and 45,532.98 is: 68,290.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,523.62 : 135,767.84 = 45,532.98 : x
  2. Step 2: Convert to fraction form
    90,523.62/135,767.84 = 45,532.98/x
  3. Step 3: Cross multiply
    90,523.62x = 135,767.84 × 45,532.98
  4. Step 4: Simplify right side
    90,523.62x = 6,181,914,343.36
  5. Step 5: Solve for x
    x = 6,181,914,343.36/90,523.62
  6. Step 6: Final answer
    x = 68,290.62

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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.