Home / 69,168.40-103,686.18-44,137.78

Finding the Fourth Proportional to 69,168.40, 103,686.18 and 44,137.78

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Solution

The fourth proportional to 69,168.40, 103,686.18 and 44,137.78 is: 66,164.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,168.40 : 103,686.18 = 44,137.78 : x
  2. Step 2: Convert to fraction form
    69,168.40/103,686.18 = 44,137.78/x
  3. Step 3: Cross multiply
    69,168.40x = 103,686.18 × 44,137.78
  4. Step 4: Simplify right side
    69,168.40x = 4,576,477,801.88
  5. Step 5: Solve for x
    x = 4,576,477,801.88/69,168.40
  6. Step 6: Final answer
    x = 66,164.29

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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.