Home / 115,029.72-172,572.22-36,143.89

Finding the Fourth Proportional to 115,029.72, 172,572.22 and 36,143.89

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Solution

The fourth proportional to 115,029.72, 172,572.22 and 36,143.89 is: 54,224.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,029.72 : 172,572.22 = 36,143.89 : x
  2. Step 2: Convert to fraction form
    115,029.72/172,572.22 = 36,143.89/x
  3. Step 3: Cross multiply
    115,029.72x = 172,572.22 × 36,143.89
  4. Step 4: Simplify right side
    115,029.72x = 6,237,431,336.74
  5. Step 5: Solve for x
    x = 6,237,431,336.74/115,029.72
  6. Step 6: Final answer
    x = 54,224.52

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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.