Home / 52,791.24-72,853.14-30,129.78

Finding the Fourth Proportional to 52,791.24, 72,853.14 and 30,129.78

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Solution

The fourth proportional to 52,791.24, 72,853.14 and 30,129.78 is: 41,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,791.24 : 72,853.14 = 30,129.78 : x
  2. Step 2: Convert to fraction form
    52,791.24/72,853.14 = 30,129.78/x
  3. Step 3: Cross multiply
    52,791.24x = 72,853.14 × 30,129.78
  4. Step 4: Simplify right side
    52,791.24x = 2,195,049,080.51
  5. Step 5: Solve for x
    x = 2,195,049,080.51/52,791.24
  6. Step 6: Final answer
    x = 41,579.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.