Home / 69,087.93-103,632.06-19,170.71

Finding the Fourth Proportional to 69,087.93, 103,632.06 and 19,170.71

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Solution

The fourth proportional to 69,087.93, 103,632.06 and 19,170.71 is: 28,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,087.93 : 103,632.06 = 19,170.71 : x
  2. Step 2: Convert to fraction form
    69,087.93/103,632.06 = 19,170.71/x
  3. Step 3: Cross multiply
    69,087.93x = 103,632.06 × 19,170.71
  4. Step 4: Simplify right side
    69,087.93x = 1,986,699,650.80
  5. Step 5: Solve for x
    x = 1,986,699,650.80/69,087.93
  6. Step 6: Final answer
    x = 28,756.10

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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.