Home / 36,134.80-54,130.20-31,805.20

Finding the Fourth Proportional to 36,134.80, 54,130.20 and 31,805.20

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Solution

The fourth proportional to 36,134.80, 54,130.20 and 31,805.20 is: 47,644.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,134.80 : 54,130.20 = 31,805.20 : x
  2. Step 2: Convert to fraction form
    36,134.80/54,130.20 = 31,805.20/x
  3. Step 3: Cross multiply
    36,134.80x = 54,130.20 × 31,805.20
  4. Step 4: Simplify right side
    36,134.80x = 1,721,621,837.04
  5. Step 5: Solve for x
    x = 1,721,621,837.04/36,134.80
  6. Step 6: Final answer
    x = 47,644.43

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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.