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Finding the Fourth Proportional to 90,995.56, 136,493.30 and 27,813.12

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Solution

The fourth proportional to 90,995.56, 136,493.30 and 27,813.12 is: 41,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,995.56 : 136,493.30 = 27,813.12 : x
  2. Step 2: Convert to fraction form
    90,995.56/136,493.30 = 27,813.12/x
  3. Step 3: Cross multiply
    90,995.56x = 136,493.30 × 27,813.12
  4. Step 4: Simplify right side
    90,995.56x = 3,796,304,532.10
  5. Step 5: Solve for x
    x = 3,796,304,532.10/90,995.56
  6. Step 6: Final answer
    x = 41,719.67

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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.