Home / 291,949.50-437,865.90-81,589.26

Finding the Fourth Proportional to 291,949.50, 437,865.90 and 81,589.26

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Solution

The fourth proportional to 291,949.50, 437,865.90 and 81,589.26 is: 122,367.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,949.50 : 437,865.90 = 81,589.26 : x
  2. Step 2: Convert to fraction form
    291,949.50/437,865.90 = 81,589.26/x
  3. Step 3: Cross multiply
    291,949.50x = 437,865.90 × 81,589.26
  4. Step 4: Simplify right side
    291,949.50x = 35,725,154,760.23
  5. Step 5: Solve for x
    x = 35,725,154,760.23/291,949.50
  6. Step 6: Final answer
    x = 122,367.58

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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.