Home / 81,217.10-112,078.86-44,918.54

Finding the Fourth Proportional to 81,217.10, 112,078.86 and 44,918.54

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Solution

The fourth proportional to 81,217.10, 112,078.86 and 44,918.54 is: 61,987.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,217.10 : 112,078.86 = 44,918.54 : x
  2. Step 2: Convert to fraction form
    81,217.10/112,078.86 = 44,918.54/x
  3. Step 3: Cross multiply
    81,217.10x = 112,078.86 × 44,918.54
  4. Step 4: Simplify right side
    81,217.10x = 5,034,418,756.06
  5. Step 5: Solve for x
    x = 5,034,418,756.06/81,217.10
  6. Step 6: Final answer
    x = 61,987.18

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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.