Home / 69,087.74-103,631.60-19,167.84

Finding the Fourth Proportional to 69,087.74, 103,631.60 and 19,167.84

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Solution

The fourth proportional to 69,087.74, 103,631.60 and 19,167.84 is: 28,751.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,087.74 : 103,631.60 = 19,167.84 : x
  2. Step 2: Convert to fraction form
    69,087.74/103,631.60 = 19,167.84/x
  3. Step 3: Cross multiply
    69,087.74x = 103,631.60 × 19,167.84
  4. Step 4: Simplify right side
    69,087.74x = 1,986,393,975.66
  5. Step 5: Solve for x
    x = 1,986,393,975.66/69,087.74
  6. Step 6: Final answer
    x = 28,751.76

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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.