Home / 291,962.09-437,921.27-81,616.43

Finding the Fourth Proportional to 291,962.09, 437,921.27 and 81,616.43

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Solution

The fourth proportional to 291,962.09, 437,921.27 and 81,616.43 is: 122,418.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,962.09 : 437,921.27 = 81,616.43 : x
  2. Step 2: Convert to fraction form
    291,962.09/437,921.27 = 81,616.43/x
  3. Step 3: Cross multiply
    291,962.09x = 437,921.27 × 81,616.43
  4. Step 4: Simplify right side
    291,962.09x = 35,741,571,671.25
  5. Step 5: Solve for x
    x = 35,741,571,671.25/291,962.09
  6. Step 6: Final answer
    x = 122,418.54

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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.