Home / 51,415.20-77,131.94-18,154.58

Finding the Fourth Proportional to 51,415.20, 77,131.94 and 18,154.58

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Solution

The fourth proportional to 51,415.20, 77,131.94 and 18,154.58 is: 27,235.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,415.20 : 77,131.94 = 18,154.58 : x
  2. Step 2: Convert to fraction form
    51,415.20/77,131.94 = 18,154.58/x
  3. Step 3: Cross multiply
    51,415.20x = 77,131.94 × 18,154.58
  4. Step 4: Simplify right side
    51,415.20x = 1,400,297,975.29
  5. Step 5: Solve for x
    x = 1,400,297,975.29/51,415.20
  6. Step 6: Final answer
    x = 27,235.10

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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.