Home / 74,372.99-102,634.16-40,380.83

Finding the Fourth Proportional to 74,372.99, 102,634.16 and 40,380.83

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Solution

The fourth proportional to 74,372.99, 102,634.16 and 40,380.83 is: 55,725.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,372.99 : 102,634.16 = 40,380.83 : x
  2. Step 2: Convert to fraction form
    74,372.99/102,634.16 = 40,380.83/x
  3. Step 3: Cross multiply
    74,372.99x = 102,634.16 × 40,380.83
  4. Step 4: Simplify right side
    74,372.99x = 4,144,452,236.96
  5. Step 5: Solve for x
    x = 4,144,452,236.96/74,372.99
  6. Step 6: Final answer
    x = 55,725.24

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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.