Home / 81,065.38-111,865.58-45,257.64

Finding the Fourth Proportional to 81,065.38, 111,865.58 and 45,257.64

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Solution

The fourth proportional to 81,065.38, 111,865.58 and 45,257.64 is: 62,452.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,065.38 : 111,865.58 = 45,257.64 : x
  2. Step 2: Convert to fraction form
    81,065.38/111,865.58 = 45,257.64/x
  3. Step 3: Cross multiply
    81,065.38x = 111,865.58 × 45,257.64
  4. Step 4: Simplify right side
    81,065.38x = 5,062,772,148.03
  5. Step 5: Solve for x
    x = 5,062,772,148.03/81,065.38
  6. Step 6: Final answer
    x = 62,452.95

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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.