Home / 82,772.82-114,196.86-55,555.56

Finding the Fourth Proportional to 82,772.82, 114,196.86 and 55,555.56

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Solution

The fourth proportional to 82,772.82, 114,196.86 and 55,555.56 is: 76,646.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,772.82 : 114,196.86 = 55,555.56 : x
  2. Step 2: Convert to fraction form
    82,772.82/114,196.86 = 55,555.56/x
  3. Step 3: Cross multiply
    82,772.82x = 114,196.86 × 55,555.56
  4. Step 4: Simplify right side
    82,772.82x = 6,344,270,507.54
  5. Step 5: Solve for x
    x = 6,344,270,507.54/82,772.82
  6. Step 6: Final answer
    x = 76,646.78

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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.