Home / 53,147.16-79,726.14-18,089.28

Finding the Fourth Proportional to 53,147.16, 79,726.14 and 18,089.28

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Solution

The fourth proportional to 53,147.16, 79,726.14 and 18,089.28 is: 27,135.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,147.16 : 79,726.14 = 18,089.28 : x
  2. Step 2: Convert to fraction form
    53,147.16/79,726.14 = 18,089.28/x
  3. Step 3: Cross multiply
    53,147.16x = 79,726.14 × 18,089.28
  4. Step 4: Simplify right side
    53,147.16x = 1,442,188,469.78
  5. Step 5: Solve for x
    x = 1,442,188,469.78/53,147.16
  6. Step 6: Final answer
    x = 27,135.76

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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.