Home / 81,931.26-113,065.38-46,121.82

Finding the Fourth Proportional to 81,931.26, 113,065.38 and 46,121.82

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Solution

The fourth proportional to 81,931.26, 113,065.38 and 46,121.82 is: 63,648.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,931.26 : 113,065.38 = 46,121.82 : x
  2. Step 2: Convert to fraction form
    81,931.26/113,065.38 = 46,121.82/x
  3. Step 3: Cross multiply
    81,931.26x = 113,065.38 × 46,121.82
  4. Step 4: Simplify right side
    81,931.26x = 5,214,781,104.59
  5. Step 5: Solve for x
    x = 5,214,781,104.59/81,931.26
  6. Step 6: Final answer
    x = 63,648.25

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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.