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Finding the Fourth Proportional to 45,452.80, 68,102.40 and 37,619.20

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Solution

The fourth proportional to 45,452.80, 68,102.40 and 37,619.20 is: 56,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,452.80 : 68,102.40 = 37,619.20 : x
  2. Step 2: Convert to fraction form
    45,452.80/68,102.40 = 37,619.20/x
  3. Step 3: Cross multiply
    45,452.80x = 68,102.40 × 37,619.20
  4. Step 4: Simplify right side
    45,452.80x = 2,561,957,806.08
  5. Step 5: Solve for x
    x = 2,561,957,806.08/45,452.80
  6. Step 6: Final answer
    x = 56,365.24

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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.