Home / 52,135.28-78,133.72-27,168.63

Finding the Fourth Proportional to 52,135.28, 78,133.72 and 27,168.63

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Solution

The fourth proportional to 52,135.28, 78,133.72 and 27,168.63 is: 40,716.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,135.28 : 78,133.72 = 27,168.63 : x
  2. Step 2: Convert to fraction form
    52,135.28/78,133.72 = 27,168.63/x
  3. Step 3: Cross multiply
    52,135.28x = 78,133.72 × 27,168.63
  4. Step 4: Simplify right side
    52,135.28x = 2,122,786,129.20
  5. Step 5: Solve for x
    x = 2,122,786,129.20/52,135.28
  6. Step 6: Final answer
    x = 40,716.88

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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.