Home / 75,020.52-112,556.72-28,286.76

Finding the Fourth Proportional to 75,020.52, 112,556.72 and 28,286.76

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Solution

The fourth proportional to 75,020.52, 112,556.72 and 28,286.76 is: 42,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,020.52 : 112,556.72 = 28,286.76 : x
  2. Step 2: Convert to fraction form
    75,020.52/112,556.72 = 28,286.76/x
  3. Step 3: Cross multiply
    75,020.52x = 112,556.72 × 28,286.76
  4. Step 4: Simplify right side
    75,020.52x = 3,183,864,925.03
  5. Step 5: Solve for x
    x = 3,183,864,925.03/75,020.52
  6. Step 6: Final answer
    x = 42,439.92

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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.