Home / 83,093.16-124,632.36-20,763.60

Finding the Fourth Proportional to 83,093.16, 124,632.36 and 20,763.60

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Solution

The fourth proportional to 83,093.16, 124,632.36 and 20,763.60 is: 31,143.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,093.16 : 124,632.36 = 20,763.60 : x
  2. Step 2: Convert to fraction form
    83,093.16/124,632.36 = 20,763.60/x
  3. Step 3: Cross multiply
    83,093.16x = 124,632.36 × 20,763.60
  4. Step 4: Simplify right side
    83,093.16x = 2,587,816,470.10
  5. Step 5: Solve for x
    x = 2,587,816,470.10/83,093.16
  6. Step 6: Final answer
    x = 31,143.56

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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.