Home / 69,521.22-103,778.33-61,113.78

Finding the Fourth Proportional to 69,521.22, 103,778.33 and 61,113.78

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Solution

The fourth proportional to 69,521.22, 103,778.33 and 61,113.78 is: 91,228.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,521.22 : 103,778.33 = 61,113.78 : x
  2. Step 2: Convert to fraction form
    69,521.22/103,778.33 = 61,113.78/x
  3. Step 3: Cross multiply
    69,521.22x = 103,778.33 × 61,113.78
  4. Step 4: Simplify right side
    69,521.22x = 6,342,285,722.82
  5. Step 5: Solve for x
    x = 6,342,285,722.82/69,521.22
  6. Step 6: Final answer
    x = 91,228.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.