Home / 69,123.35-103,604.11-26,400.78

Finding the Fourth Proportional to 69,123.35, 103,604.11 and 26,400.78

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Solution

The fourth proportional to 69,123.35, 103,604.11 and 26,400.78 is: 39,570.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,123.35 : 103,604.11 = 26,400.78 : x
  2. Step 2: Convert to fraction form
    69,123.35/103,604.11 = 26,400.78/x
  3. Step 3: Cross multiply
    69,123.35x = 103,604.11 × 26,400.78
  4. Step 4: Simplify right side
    69,123.35x = 2,735,229,249.20
  5. Step 5: Solve for x
    x = 2,735,229,249.20/69,123.35
  6. Step 6: Final answer
    x = 39,570.26

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1.5x scale

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.