Home / 75,772.39-113,728.68-38,358.73

Finding the Fourth Proportional to 75,772.39, 113,728.68 and 38,358.73

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Solution

The fourth proportional to 75,772.39, 113,728.68 and 38,358.73 is: 57,573.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,772.39 : 113,728.68 = 38,358.73 : x
  2. Step 2: Convert to fraction form
    75,772.39/113,728.68 = 38,358.73/x
  3. Step 3: Cross multiply
    75,772.39x = 113,728.68 × 38,358.73
  4. Step 4: Simplify right side
    75,772.39x = 4,362,487,729.38
  5. Step 5: Solve for x
    x = 4,362,487,729.38/75,772.39
  6. Step 6: Final answer
    x = 57,573.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.