Home / 74,622.60-102,976.20-42,769.44

Finding the Fourth Proportional to 74,622.60, 102,976.20 and 42,769.44

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Solution

The fourth proportional to 74,622.60, 102,976.20 and 42,769.44 is: 59,020.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622.60 : 102,976.20 = 42,769.44 : x
  2. Step 2: Convert to fraction form
    74,622.60/102,976.20 = 42,769.44/x
  3. Step 3: Cross multiply
    74,622.60x = 102,976.20 × 42,769.44
  4. Step 4: Simplify right side
    74,622.60x = 4,404,234,407.33
  5. Step 5: Solve for x
    x = 4,404,234,407.33/74,622.60
  6. Step 6: Final answer
    x = 59,020.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.