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Finding the Fourth Proportional to 90,591.69, 135,904.24 and 29,805.38

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Solution

The fourth proportional to 90,591.69, 135,904.24 and 29,805.38 is: 44,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,591.69 : 135,904.24 = 29,805.38 : x
  2. Step 2: Convert to fraction form
    90,591.69/135,904.24 = 29,805.38/x
  3. Step 3: Cross multiply
    90,591.69x = 135,904.24 × 29,805.38
  4. Step 4: Simplify right side
    90,591.69x = 4,050,677,043.87
  5. Step 5: Solve for x
    x = 4,050,677,043.87/90,591.69
  6. Step 6: Final answer
    x = 44,713.56

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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.