Home / 115,031.72-172,575.22-36,145.89

Finding the Fourth Proportional to 115,031.72, 172,575.22 and 36,145.89

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Solution

The fourth proportional to 115,031.72, 172,575.22 and 36,145.89 is: 54,227.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,031.72 : 172,575.22 = 36,145.89 : x
  2. Step 2: Convert to fraction form
    115,031.72/172,575.22 = 36,145.89/x
  3. Step 3: Cross multiply
    115,031.72x = 172,575.22 × 36,145.89
  4. Step 4: Simplify right side
    115,031.72x = 6,237,884,918.85
  5. Step 5: Solve for x
    x = 6,237,884,918.85/115,031.72
  6. Step 6: Final answer
    x = 54,227.52

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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.