Home / 83,727.58-115,550.49-47,928.82

Finding the Fourth Proportional to 83,727.58, 115,550.49 and 47,928.82

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Solution

The fourth proportional to 83,727.58, 115,550.49 and 47,928.82 is: 66,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,727.58 : 115,550.49 = 47,928.82 : x
  2. Step 2: Convert to fraction form
    83,727.58/115,550.49 = 47,928.82/x
  3. Step 3: Cross multiply
    83,727.58x = 115,550.49 × 47,928.82
  4. Step 4: Simplify right side
    83,727.58x = 5,538,198,636.12
  5. Step 5: Solve for x
    x = 5,538,198,636.12/83,727.58
  6. Step 6: Final answer
    x = 66,145.45

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1.5x scale

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.