Home / 45,619.20-68,493.60-28,123.20

Finding the Fourth Proportional to 45,619.20, 68,493.60 and 28,123.20

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Solution

The fourth proportional to 45,619.20, 68,493.60 and 28,123.20 is: 42,224.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,619.20 : 68,493.60 = 28,123.20 : x
  2. Step 2: Convert to fraction form
    45,619.20/68,493.60 = 28,123.20/x
  3. Step 3: Cross multiply
    45,619.20x = 68,493.60 × 28,123.20
  4. Step 4: Simplify right side
    45,619.20x = 1,926,259,211.52
  5. Step 5: Solve for x
    x = 1,926,259,211.52/45,619.20
  6. Step 6: Final answer
    x = 42,224.75

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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.