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Finding the Fourth Proportional to 79,344.72, 119,015.79 and 31,958.69

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Solution

The fourth proportional to 79,344.72, 119,015.79 and 31,958.69 is: 47,937.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,344.72 : 119,015.79 = 31,958.69 : x
  2. Step 2: Convert to fraction form
    79,344.72/119,015.79 = 31,958.69/x
  3. Step 3: Cross multiply
    79,344.72x = 119,015.79 × 31,958.69
  4. Step 4: Simplify right side
    79,344.72x = 3,803,588,142.64
  5. Step 5: Solve for x
    x = 3,803,588,142.64/79,344.72
  6. Step 6: Final answer
    x = 47,937.51

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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.