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Finding the Fourth Proportional to 70,286.99, 96,998.60 and 40,067.42

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Solution

The fourth proportional to 70,286.99, 96,998.60 and 40,067.42 is: 55,294.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,286.99 : 96,998.60 = 40,067.42 : x
  2. Step 2: Convert to fraction form
    70,286.99/96,998.60 = 40,067.42/x
  3. Step 3: Cross multiply
    70,286.99x = 96,998.60 × 40,067.42
  4. Step 4: Simplify right side
    70,286.99x = 3,886,483,988.28
  5. Step 5: Solve for x
    x = 3,886,483,988.28/70,286.99
  6. Step 6: Final answer
    x = 55,294.50

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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.