Home / 79,717.65-119,355.04-40,154.82

Finding the Fourth Proportional to 79,717.65, 119,355.04 and 40,154.82

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Solution

The fourth proportional to 79,717.65, 119,355.04 and 40,154.82 is: 60,120.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,717.65 : 119,355.04 = 40,154.82 : x
  2. Step 2: Convert to fraction form
    79,717.65/119,355.04 = 40,154.82/x
  3. Step 3: Cross multiply
    79,717.65x = 119,355.04 × 40,154.82
  4. Step 4: Simplify right side
    79,717.65x = 4,792,680,147.29
  5. Step 5: Solve for x
    x = 4,792,680,147.29/79,717.65
  6. Step 6: Final answer
    x = 60,120.69

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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.