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Finding the Fourth Proportional to 73,102.19, 100,884.15 and 42,910.65

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Solution

The fourth proportional to 73,102.19, 100,884.15 and 42,910.65 is: 59,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,102.19 : 100,884.15 = 42,910.65 : x
  2. Step 2: Convert to fraction form
    73,102.19/100,884.15 = 42,910.65/x
  3. Step 3: Cross multiply
    73,102.19x = 100,884.15 × 42,910.65
  4. Step 4: Simplify right side
    73,102.19x = 4,329,004,451.20
  5. Step 5: Solve for x
    x = 4,329,004,451.20/73,102.19
  6. Step 6: Final answer
    x = 59,218.54

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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.