Home / 291,740.10-437,571.26-81,360.42

Finding the Fourth Proportional to 291,740.10, 437,571.26 and 81,360.42

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Solution

The fourth proportional to 291,740.10, 437,571.26 and 81,360.42 is: 122,029.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,740.10 : 437,571.26 = 81,360.42 : x
  2. Step 2: Convert to fraction form
    291,740.10/437,571.26 = 81,360.42/x
  3. Step 3: Cross multiply
    291,740.10x = 437,571.26 × 81,360.42
  4. Step 4: Simplify right side
    291,740.10x = 35,600,981,493.53
  5. Step 5: Solve for x
    x = 35,600,981,493.53/291,740.10
  6. Step 6: Final answer
    x = 122,029.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.