Home / 66,653.73-91,983.25-39,798.59

Finding the Fourth Proportional to 66,653.73, 91,983.25 and 39,798.59

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Solution

The fourth proportional to 66,653.73, 91,983.25 and 39,798.59 is: 54,922.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.73 : 91,983.25 = 39,798.59 : x
  2. Step 2: Convert to fraction form
    66,653.73/91,983.25 = 39,798.59/x
  3. Step 3: Cross multiply
    66,653.73x = 91,983.25 × 39,798.59
  4. Step 4: Simplify right side
    66,653.73x = 3,660,803,324.16
  5. Step 5: Solve for x
    x = 3,660,803,324.16/66,653.73
  6. Step 6: Final answer
    x = 54,922.71

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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.