Home / 83,738.77-115,564.67-47,928.01

Finding the Fourth Proportional to 83,738.77, 115,564.67 and 47,928.01

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Solution

The fourth proportional to 83,738.77, 115,564.67 and 47,928.01 is: 66,143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,738.77 : 115,564.67 = 47,928.01 : x
  2. Step 2: Convert to fraction form
    83,738.77/115,564.67 = 47,928.01/x
  3. Step 3: Cross multiply
    83,738.77x = 115,564.67 × 47,928.01
  4. Step 4: Simplify right side
    83,738.77x = 5,538,784,527.27
  5. Step 5: Solve for x
    x = 5,538,784,527.27/83,738.77
  6. Step 6: Final answer
    x = 66,143.61

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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.