Home / 51,405.84-77,100.18-18,118.08

Finding the Fourth Proportional to 51,405.84, 77,100.18 and 18,118.08

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Solution

The fourth proportional to 51,405.84, 77,100.18 and 18,118.08 is: 27,174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,405.84 : 77,100.18 = 18,118.08 : x
  2. Step 2: Convert to fraction form
    51,405.84/77,100.18 = 18,118.08/x
  3. Step 3: Cross multiply
    51,405.84x = 77,100.18 × 18,118.08
  4. Step 4: Simplify right side
    51,405.84x = 1,396,907,229.25
  5. Step 5: Solve for x
    x = 1,396,907,229.25/51,405.84
  6. Step 6: Final answer
    x = 27,174.10

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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.