Home / 83,015.78-114,561.24-47,205.80

Finding the Fourth Proportional to 83,015.78, 114,561.24 and 47,205.80

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Solution

The fourth proportional to 83,015.78, 114,561.24 and 47,205.80 is: 65,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,015.78 : 114,561.24 = 47,205.80 : x
  2. Step 2: Convert to fraction form
    83,015.78/114,561.24 = 47,205.80/x
  3. Step 3: Cross multiply
    83,015.78x = 114,561.24 × 47,205.80
  4. Step 4: Simplify right side
    83,015.78x = 5,407,954,983.19
  5. Step 5: Solve for x
    x = 5,407,954,983.19/83,015.78
  6. Step 6: Final answer
    x = 65,143.70

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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.