Home / 51,436.81-77,161.38-18,150

Finding the Fourth Proportional to 51,436.81, 77,161.38 and 18,150

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Solution

The fourth proportional to 51,436.81, 77,161.38 and 18,150 is: 27,227.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,436.81 : 77,161.38 = 18,150 : x
  2. Step 2: Convert to fraction form
    51,436.81/77,161.38 = 18,150/x
  3. Step 3: Cross multiply
    51,436.81x = 77,161.38 × 18,150
  4. Step 4: Simplify right side
    51,436.81x = 1,400,479,047
  5. Step 5: Solve for x
    x = 1,400,479,047/51,436.81
  6. Step 6: Final answer
    x = 27,227.18

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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.