Home / 115,288.06-172,932.90-36,408.64

Finding the Fourth Proportional to 115,288.06, 172,932.90 and 36,408.64

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Solution

The fourth proportional to 115,288.06, 172,932.90 and 36,408.64 is: 54,613.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,288.06 : 172,932.90 = 36,408.64 : x
  2. Step 2: Convert to fraction form
    115,288.06/172,932.90 = 36,408.64/x
  3. Step 3: Cross multiply
    115,288.06x = 172,932.90 × 36,408.64
  4. Step 4: Simplify right side
    115,288.06x = 6,296,251,700.26
  5. Step 5: Solve for x
    x = 6,296,251,700.26/115,288.06
  6. Step 6: Final answer
    x = 54,613.22

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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.