Home / 115,003.72-172,447.24-52,620.76

Finding the Fourth Proportional to 115,003.72, 172,447.24 and 52,620.76

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Solution

The fourth proportional to 115,003.72, 172,447.24 and 52,620.76 is: 78,904.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,003.72 : 172,447.24 = 52,620.76 : x
  2. Step 2: Convert to fraction form
    115,003.72/172,447.24 = 52,620.76/x
  3. Step 3: Cross multiply
    115,003.72x = 172,447.24 × 52,620.76
  4. Step 4: Simplify right side
    115,003.72x = 9,074,304,828.70
  5. Step 5: Solve for x
    x = 9,074,304,828.70/115,003.72
  6. Step 6: Final answer
    x = 78,904.45

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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.