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Finding the Fourth Proportional to 90,124.62, 135,188.76 and 27,795.12

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Solution

The fourth proportional to 90,124.62, 135,188.76 and 27,795.12 is: 41,693.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,124.62 : 135,188.76 = 27,795.12 : x
  2. Step 2: Convert to fraction form
    90,124.62/135,188.76 = 27,795.12/x
  3. Step 3: Cross multiply
    90,124.62x = 135,188.76 × 27,795.12
  4. Step 4: Simplify right side
    90,124.62x = 3,757,587,806.85
  5. Step 5: Solve for x
    x = 3,757,587,806.85/90,124.62
  6. Step 6: Final answer
    x = 41,693.24

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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.