Home / 75,515.32-104,171.88-45,286.12

Finding the Fourth Proportional to 75,515.32, 104,171.88 and 45,286.12

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Solution

The fourth proportional to 75,515.32, 104,171.88 and 45,286.12 is: 62,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,515.32 : 104,171.88 = 45,286.12 : x
  2. Step 2: Convert to fraction form
    75,515.32/104,171.88 = 45,286.12/x
  3. Step 3: Cross multiply
    75,515.32x = 104,171.88 × 45,286.12
  4. Step 4: Simplify right side
    75,515.32x = 4,717,540,258.31
  5. Step 5: Solve for x
    x = 4,717,540,258.31/75,515.32
  6. Step 6: Final answer
    x = 62,471.30

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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.