Home / 63,143.28-87,135-34,462.22

Finding the Fourth Proportional to 63,143.28, 87,135 and 34,462.22

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Solution

The fourth proportional to 63,143.28, 87,135 and 34,462.22 is: 47,556.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,143.28 : 87,135 = 34,462.22 : x
  2. Step 2: Convert to fraction form
    63,143.28/87,135 = 34,462.22/x
  3. Step 3: Cross multiply
    63,143.28x = 87,135 × 34,462.22
  4. Step 4: Simplify right side
    63,143.28x = 3,002,865,104.03
  5. Step 5: Solve for x
    x = 3,002,865,104.03/63,143.28
  6. Step 6: Final answer
    x = 47,556.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.