Home / 50,721.28-76,086.24-13,281.20

Finding the Fourth Proportional to 50,721.28, 76,086.24 and 13,281.20

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Solution

The fourth proportional to 50,721.28, 76,086.24 and 13,281.20 is: 19,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,721.28 : 76,086.24 = 13,281.20 : x
  2. Step 2: Convert to fraction form
    50,721.28/76,086.24 = 13,281.20/x
  3. Step 3: Cross multiply
    50,721.28x = 76,086.24 × 13,281.20
  4. Step 4: Simplify right side
    50,721.28x = 1,010,516,570.69
  5. Step 5: Solve for x
    x = 1,010,516,570.69/50,721.28
  6. Step 6: Final answer
    x = 19,922.93

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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.