Home / 79,941.51-119,912.27-40,509.90

Finding the Fourth Proportional to 79,941.51, 119,912.27 and 40,509.90

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Solution

The fourth proportional to 79,941.51, 119,912.27 and 40,509.90 is: 60,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,941.51 : 119,912.27 = 40,509.90 : x
  2. Step 2: Convert to fraction form
    79,941.51/119,912.27 = 40,509.90/x
  3. Step 3: Cross multiply
    79,941.51x = 119,912.27 × 40,509.90
  4. Step 4: Simplify right side
    79,941.51x = 4,857,633,863.92
  5. Step 5: Solve for x
    x = 4,857,633,863.92/79,941.51
  6. Step 6: Final answer
    x = 60,764.85

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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.