Home / 276,412.66-414,621.29-76,748.61

Finding the Fourth Proportional to 276,412.66, 414,621.29 and 76,748.61

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Solution

The fourth proportional to 276,412.66, 414,621.29 and 76,748.61 is: 115,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,412.66 : 414,621.29 = 76,748.61 : x
  2. Step 2: Convert to fraction form
    276,412.66/414,621.29 = 76,748.61/x
  3. Step 3: Cross multiply
    276,412.66x = 414,621.29 × 76,748.61
  4. Step 4: Simplify right side
    276,412.66x = 31,821,608,720.46
  5. Step 5: Solve for x
    x = 31,821,608,720.46/276,412.66
  6. Step 6: Final answer
    x = 115,123.56

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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.