Home / 79,665.18-119,571.48-40,249.86

Finding the Fourth Proportional to 79,665.18, 119,571.48 and 40,249.86

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Solution

The fourth proportional to 79,665.18, 119,571.48 and 40,249.86 is: 60,412.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,665.18 : 119,571.48 = 40,249.86 : x
  2. Step 2: Convert to fraction form
    79,665.18/119,571.48 = 40,249.86/x
  3. Step 3: Cross multiply
    79,665.18x = 119,571.48 × 40,249.86
  4. Step 4: Simplify right side
    79,665.18x = 4,812,735,329.99
  5. Step 5: Solve for x
    x = 4,812,735,329.99/79,665.18
  6. Step 6: Final answer
    x = 60,412.03

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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.