Home / 74,362.42-102,620.97-40,371.25

Finding the Fourth Proportional to 74,362.42, 102,620.97 and 40,371.25

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Solution

The fourth proportional to 74,362.42, 102,620.97 and 40,371.25 is: 55,712.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,362.42 : 102,620.97 = 40,371.25 : x
  2. Step 2: Convert to fraction form
    74,362.42/102,620.97 = 40,371.25/x
  3. Step 3: Cross multiply
    74,362.42x = 102,620.97 × 40,371.25
  4. Step 4: Simplify right side
    74,362.42x = 4,142,936,835.11
  5. Step 5: Solve for x
    x = 4,142,936,835.11/74,362.42
  6. Step 6: Final answer
    x = 55,712.78

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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.