Home / 51,931.38-77,867.89-21,527.22

Finding the Fourth Proportional to 51,931.38, 77,867.89 and 21,527.22

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Solution

The fourth proportional to 51,931.38, 77,867.89 and 21,527.22 is: 32,278.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,931.38 : 77,867.89 = 21,527.22 : x
  2. Step 2: Convert to fraction form
    51,931.38/77,867.89 = 21,527.22/x
  3. Step 3: Cross multiply
    51,931.38x = 77,867.89 × 21,527.22
  4. Step 4: Simplify right side
    51,931.38x = 1,676,279,198.97
  5. Step 5: Solve for x
    x = 1,676,279,198.97/51,931.38
  6. Step 6: Final answer
    x = 32,278.73

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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.