Home / 50,731.28-76,101.24-13,291.20

Finding the Fourth Proportional to 50,731.28, 76,101.24 and 13,291.20

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Solution

The fourth proportional to 50,731.28, 76,101.24 and 13,291.20 is: 19,937.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,731.28 : 76,101.24 = 13,291.20 : x
  2. Step 2: Convert to fraction form
    50,731.28/76,101.24 = 13,291.20/x
  3. Step 3: Cross multiply
    50,731.28x = 76,101.24 × 13,291.20
  4. Step 4: Simplify right side
    50,731.28x = 1,011,476,801.09
  5. Step 5: Solve for x
    x = 1,011,476,801.09/50,731.28
  6. Step 6: Final answer
    x = 19,937.93

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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.