Home / 83,238-124,869.42-30,643.44

Finding the Fourth Proportional to 83,238, 124,869.42 and 30,643.44

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Solution

The fourth proportional to 83,238, 124,869.42 and 30,643.44 is: 45,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,238 : 124,869.42 = 30,643.44 : x
  2. Step 2: Convert to fraction form
    83,238/124,869.42 = 30,643.44/x
  3. Step 3: Cross multiply
    83,238x = 124,869.42 × 30,643.44
  4. Step 4: Simplify right side
    83,238x = 3,826,428,579.60
  5. Step 5: Solve for x
    x = 3,826,428,579.60/83,238
  6. Step 6: Final answer
    x = 45,969.73

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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.