Home / 51,382.68-77,079.18-13,943.34

Finding the Fourth Proportional to 51,382.68, 77,079.18 and 13,943.34

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Solution

The fourth proportional to 51,382.68, 77,079.18 and 13,943.34 is: 20,916.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,382.68 : 77,079.18 = 13,943.34 : x
  2. Step 2: Convert to fraction form
    51,382.68/77,079.18 = 13,943.34/x
  3. Step 3: Cross multiply
    51,382.68x = 77,079.18 × 13,943.34
  4. Step 4: Simplify right side
    51,382.68x = 1,074,741,213.66
  5. Step 5: Solve for x
    x = 1,074,741,213.66/51,382.68
  6. Step 6: Final answer
    x = 20,916.41

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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.