Home / 40,696.69-61,061.12-12,618.97

Finding the Fourth Proportional to 40,696.69, 61,061.12 and 12,618.97

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Solution

The fourth proportional to 40,696.69, 61,061.12 and 12,618.97 is: 18,933.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,696.69 : 61,061.12 = 12,618.97 : x
  2. Step 2: Convert to fraction form
    40,696.69/61,061.12 = 12,618.97/x
  3. Step 3: Cross multiply
    40,696.69x = 61,061.12 × 12,618.97
  4. Step 4: Simplify right side
    40,696.69x = 770,528,441.45
  5. Step 5: Solve for x
    x = 770,528,441.45/40,696.69
  6. Step 6: Final answer
    x = 18,933.44

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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.