Home / 56,067.12-84,129.12-31,102.56

Finding the Fourth Proportional to 56,067.12, 84,129.12 and 31,102.56

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Solution

The fourth proportional to 56,067.12, 84,129.12 and 31,102.56 is: 46,669.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,067.12 : 84,129.12 = 31,102.56 : x
  2. Step 2: Convert to fraction form
    56,067.12/84,129.12 = 31,102.56/x
  3. Step 3: Cross multiply
    56,067.12x = 84,129.12 × 31,102.56
  4. Step 4: Simplify right side
    56,067.12x = 2,616,631,002.55
  5. Step 5: Solve for x
    x = 2,616,631,002.55/56,067.12
  6. Step 6: Final answer
    x = 46,669.62

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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.