Home / 74,619.15-102,974.25-40,627.11

Finding the Fourth Proportional to 74,619.15, 102,974.25 and 40,627.11

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Solution

The fourth proportional to 74,619.15, 102,974.25 and 40,627.11 is: 56,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,619.15 : 102,974.25 = 40,627.11 : x
  2. Step 2: Convert to fraction form
    74,619.15/102,974.25 = 40,627.11/x
  3. Step 3: Cross multiply
    74,619.15x = 102,974.25 × 40,627.11
  4. Step 4: Simplify right side
    74,619.15x = 4,183,546,181.92
  5. Step 5: Solve for x
    x = 4,183,546,181.92/74,619.15
  6. Step 6: Final answer
    x = 56,065.32

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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.