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Finding the Fourth Proportional to 79,446.42, 119,167.81 and 39,992.94

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Solution

The fourth proportional to 79,446.42, 119,167.81 and 39,992.94 is: 59,988.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,446.42 : 119,167.81 = 39,992.94 : x
  2. Step 2: Convert to fraction form
    79,446.42/119,167.81 = 39,992.94/x
  3. Step 3: Cross multiply
    79,446.42x = 119,167.81 × 39,992.94
  4. Step 4: Simplify right side
    79,446.42x = 4,765,870,975.28
  5. Step 5: Solve for x
    x = 4,765,870,975.28/79,446.42
  6. Step 6: Final answer
    x = 59,988.49

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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.