Home / 79,839.92-119,834.04-40,424.60

Finding the Fourth Proportional to 79,839.92, 119,834.04 and 40,424.60

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Solution

The fourth proportional to 79,839.92, 119,834.04 and 40,424.60 is: 60,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,839.92 : 119,834.04 = 40,424.60 : x
  2. Step 2: Convert to fraction form
    79,839.92/119,834.04 = 40,424.60/x
  3. Step 3: Cross multiply
    79,839.92x = 119,834.04 × 40,424.60
  4. Step 4: Simplify right side
    79,839.92x = 4,844,243,133.38
  5. Step 5: Solve for x
    x = 4,844,243,133.38/79,839.92
  6. Step 6: Final answer
    x = 60,674.45

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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.