Home / 45,919.80-68,748.30-28,270.80

Finding the Fourth Proportional to 45,919.80, 68,748.30 and 28,270.80

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Solution

The fourth proportional to 45,919.80, 68,748.30 and 28,270.80 is: 42,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,919.80 : 68,748.30 = 28,270.80 : x
  2. Step 2: Convert to fraction form
    45,919.80/68,748.30 = 28,270.80/x
  3. Step 3: Cross multiply
    45,919.80x = 68,748.30 × 28,270.80
  4. Step 4: Simplify right side
    45,919.80x = 1,943,569,439.64
  5. Step 5: Solve for x
    x = 1,943,569,439.64/45,919.80
  6. Step 6: Final answer
    x = 42,325.30

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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.