Home / 69,026.67-103,540.15-19,106.91

Finding the Fourth Proportional to 69,026.67, 103,540.15 and 19,106.91

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Solution

The fourth proportional to 69,026.67, 103,540.15 and 19,106.91 is: 28,660.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,026.67 : 103,540.15 = 19,106.91 : x
  2. Step 2: Convert to fraction form
    69,026.67/103,540.15 = 19,106.91/x
  3. Step 3: Cross multiply
    69,026.67x = 103,540.15 × 19,106.91
  4. Step 4: Simplify right side
    69,026.67x = 1,978,332,279.67
  5. Step 5: Solve for x
    x = 1,978,332,279.67/69,026.67
  6. Step 6: Final answer
    x = 28,660.40

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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.