Home / 69,081.56-103,622.33-19,161.66

Finding the Fourth Proportional to 69,081.56, 103,622.33 and 19,161.66

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Solution

The fourth proportional to 69,081.56, 103,622.33 and 19,161.66 is: 28,742.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,081.56 : 103,622.33 = 19,161.66 : x
  2. Step 2: Convert to fraction form
    69,081.56/103,622.33 = 19,161.66/x
  3. Step 3: Cross multiply
    69,081.56x = 103,622.33 × 19,161.66
  4. Step 4: Simplify right side
    69,081.56x = 1,985,575,855.87
  5. Step 5: Solve for x
    x = 1,985,575,855.87/69,081.56
  6. Step 6: Final answer
    x = 28,742.49

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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.