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Finding the Fourth Proportional to 36,143.70, 54,187.76 and 18,359.75

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Solution

The fourth proportional to 36,143.70, 54,187.76 and 18,359.75 is: 27,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,143.70 : 54,187.76 = 18,359.75 : x
  2. Step 2: Convert to fraction form
    36,143.70/54,187.76 = 18,359.75/x
  3. Step 3: Cross multiply
    36,143.70x = 54,187.76 × 18,359.75
  4. Step 4: Simplify right side
    36,143.70x = 994,873,363.92
  5. Step 5: Solve for x
    x = 994,873,363.92/36,143.70
  6. Step 6: Final answer
    x = 27,525.50

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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.