Home / 82,472.06-124,326.09-76,979.25

Finding the Fourth Proportional to 82,472.06, 124,326.09 and 76,979.25

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Solution

The fourth proportional to 82,472.06, 124,326.09 and 76,979.25 is: 116,045.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,472.06 : 124,326.09 = 76,979.25 : x
  2. Step 2: Convert to fraction form
    82,472.06/124,326.09 = 76,979.25/x
  3. Step 3: Cross multiply
    82,472.06x = 124,326.09 × 76,979.25
  4. Step 4: Simplify right side
    82,472.06x = 9,570,529,163.63
  5. Step 5: Solve for x
    x = 9,570,529,163.63/82,472.06
  6. Step 6: Final answer
    x = 116,045.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.