Home / 45,414.40-68,121.60-34,355.20

Finding the Fourth Proportional to 45,414.40, 68,121.60 and 34,355.20

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Solution

The fourth proportional to 45,414.40, 68,121.60 and 34,355.20 is: 51,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,414.40 : 68,121.60 = 34,355.20 : x
  2. Step 2: Convert to fraction form
    45,414.40/68,121.60 = 34,355.20/x
  3. Step 3: Cross multiply
    45,414.40x = 68,121.60 × 34,355.20
  4. Step 4: Simplify right side
    45,414.40x = 2,340,331,192.32
  5. Step 5: Solve for x
    x = 2,340,331,192.32/45,414.40
  6. Step 6: Final answer
    x = 51,532.80

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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.