Home / 74,188.54-102,380.05-40,197.95

Finding the Fourth Proportional to 74,188.54, 102,380.05 and 40,197.95

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Solution

The fourth proportional to 74,188.54, 102,380.05 and 40,197.95 is: 55,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,188.54 : 102,380.05 = 40,197.95 : x
  2. Step 2: Convert to fraction form
    74,188.54/102,380.05 = 40,197.95/x
  3. Step 3: Cross multiply
    74,188.54x = 102,380.05 × 40,197.95
  4. Step 4: Simplify right side
    74,188.54x = 4,115,468,219.33
  5. Step 5: Solve for x
    x = 4,115,468,219.33/74,188.54
  6. Step 6: Final answer
    x = 55,473.10

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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.