Home / 81,386.97-112,308.57-45,085.96

Finding the Fourth Proportional to 81,386.97, 112,308.57 and 45,085.96

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Solution

The fourth proportional to 81,386.97, 112,308.57 and 45,085.96 is: 62,215.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,386.97 : 112,308.57 = 45,085.96 : x
  2. Step 2: Convert to fraction form
    81,386.97/112,308.57 = 45,085.96/x
  3. Step 3: Cross multiply
    81,386.97x = 112,308.57 × 45,085.96
  4. Step 4: Simplify right side
    81,386.97x = 5,063,539,694.68
  5. Step 5: Solve for x
    x = 5,063,539,694.68/81,386.97
  6. Step 6: Final answer
    x = 62,215.61

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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.