Home / 40,696.81-61,061.28-12,619.07

Finding the Fourth Proportional to 40,696.81, 61,061.28 and 12,619.07

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Solution

The fourth proportional to 40,696.81, 61,061.28 and 12,619.07 is: 18,933.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,696.81 : 61,061.28 = 12,619.07 : x
  2. Step 2: Convert to fraction form
    40,696.81/61,061.28 = 12,619.07/x
  3. Step 3: Cross multiply
    40,696.81x = 61,061.28 × 12,619.07
  4. Step 4: Simplify right side
    40,696.81x = 770,536,566.61
  5. Step 5: Solve for x
    x = 770,536,566.61/40,696.81
  6. Step 6: Final answer
    x = 18,933.59

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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.