Home / 83,121.61-114,708.55-47,313.92

Finding the Fourth Proportional to 83,121.61, 114,708.55 and 47,313.92

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Solution

The fourth proportional to 83,121.61, 114,708.55 and 47,313.92 is: 65,293.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,121.61 : 114,708.55 = 47,313.92 : x
  2. Step 2: Convert to fraction form
    83,121.61/114,708.55 = 47,313.92/x
  3. Step 3: Cross multiply
    83,121.61x = 114,708.55 × 47,313.92
  4. Step 4: Simplify right side
    83,121.61x = 5,427,311,381.95
  5. Step 5: Solve for x
    x = 5,427,311,381.95/83,121.61
  6. Step 6: Final answer
    x = 65,293.63

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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.