Home / 48,067.93-72,107.16-19,991.31

Finding the Fourth Proportional to 48,067.93, 72,107.16 and 19,991.31

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Solution

The fourth proportional to 48,067.93, 72,107.16 and 19,991.31 is: 29,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,067.93 : 72,107.16 = 19,991.31 : x
  2. Step 2: Convert to fraction form
    48,067.93/72,107.16 = 19,991.31/x
  3. Step 3: Cross multiply
    48,067.93x = 72,107.16 × 19,991.31
  4. Step 4: Simplify right side
    48,067.93x = 1,441,516,588.78
  5. Step 5: Solve for x
    x = 1,441,516,588.78/48,067.93
  6. Step 6: Final answer
    x = 29,989.15

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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.