Home / 45,426.40-68,115.30-15,845.20

Finding the Fourth Proportional to 45,426.40, 68,115.30 and 15,845.20

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Solution

The fourth proportional to 45,426.40, 68,115.30 and 15,845.20 is: 23,759.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,426.40 : 68,115.30 = 15,845.20 : x
  2. Step 2: Convert to fraction form
    45,426.40/68,115.30 = 15,845.20/x
  3. Step 3: Cross multiply
    45,426.40x = 68,115.30 × 15,845.20
  4. Step 4: Simplify right side
    45,426.40x = 1,079,300,551.56
  5. Step 5: Solve for x
    x = 1,079,300,551.56/45,426.40
  6. Step 6: Final answer
    x = 23,759.32

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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.