Home / 36,140.87-54,227.70-21,378.62

Finding the Fourth Proportional to 36,140.87, 54,227.70 and 21,378.62

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Solution

The fourth proportional to 36,140.87, 54,227.70 and 21,378.62 is: 32,077.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,140.87 : 54,227.70 = 21,378.62 : x
  2. Step 2: Convert to fraction form
    36,140.87/54,227.70 = 21,378.62/x
  3. Step 3: Cross multiply
    36,140.87x = 54,227.70 × 21,378.62
  4. Step 4: Simplify right side
    36,140.87x = 1,159,313,120.64
  5. Step 5: Solve for x
    x = 1,159,313,120.64/36,140.87
  6. Step 6: Final answer
    x = 32,077.63

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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.