Home / 81,453.38-112,405.66-49,622.25

Finding the Fourth Proportional to 81,453.38, 112,405.66 and 49,622.25

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Solution

The fourth proportional to 81,453.38, 112,405.66 and 49,622.25 is: 68,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,453.38 : 112,405.66 = 49,622.25 : x
  2. Step 2: Convert to fraction form
    81,453.38/112,405.66 = 49,622.25/x
  3. Step 3: Cross multiply
    81,453.38x = 112,405.66 × 49,622.25
  4. Step 4: Simplify right side
    81,453.38x = 5,577,821,918.89
  5. Step 5: Solve for x
    x = 5,577,821,918.89/81,453.38
  6. Step 6: Final answer
    x = 68,478.71

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1.5x scale

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.