Home / 74,406.89-102,682.62-40,416.04

Finding the Fourth Proportional to 74,406.89, 102,682.62 and 40,416.04

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Solution

The fourth proportional to 74,406.89, 102,682.62 and 40,416.04 is: 55,774.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,406.89 : 102,682.62 = 40,416.04 : x
  2. Step 2: Convert to fraction form
    74,406.89/102,682.62 = 40,416.04/x
  3. Step 3: Cross multiply
    74,406.89x = 102,682.62 × 40,416.04
  4. Step 4: Simplify right side
    74,406.89x = 4,150,025,005.58
  5. Step 5: Solve for x
    x = 4,150,025,005.58/74,406.89
  6. Step 6: Final answer
    x = 55,774.74

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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.