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Finding the Fourth Proportional to 74,220.44, 111,350.10 and 36,779

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Solution

The fourth proportional to 74,220.44, 111,350.10 and 36,779 is: 55,178.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,220.44 : 111,350.10 = 36,779 : x
  2. Step 2: Convert to fraction form
    74,220.44/111,350.10 = 36,779/x
  3. Step 3: Cross multiply
    74,220.44x = 111,350.10 × 36,779
  4. Step 4: Simplify right side
    74,220.44x = 4,095,345,327.90
  5. Step 5: Solve for x
    x = 4,095,345,327.90/74,220.44
  6. Step 6: Final answer
    x = 55,178.13

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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.