Home / 51,351.52-77,039.92-30,308.96

Finding the Fourth Proportional to 51,351.52, 77,039.92 and 30,308.96

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Solution

The fourth proportional to 51,351.52, 77,039.92 and 30,308.96 is: 45,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,351.52 : 77,039.92 = 30,308.96 : x
  2. Step 2: Convert to fraction form
    51,351.52/77,039.92 = 30,308.96/x
  3. Step 3: Cross multiply
    51,351.52x = 77,039.92 × 30,308.96
  4. Step 4: Simplify right side
    51,351.52x = 2,334,999,853.68
  5. Step 5: Solve for x
    x = 2,334,999,853.68/51,351.52
  6. Step 6: Final answer
    x = 45,470.90

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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.