Home / 81,186.78-112,029.84-50,962.44

Finding the Fourth Proportional to 81,186.78, 112,029.84 and 50,962.44

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Solution

The fourth proportional to 81,186.78, 112,029.84 and 50,962.44 is: 70,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,186.78 : 112,029.84 = 50,962.44 : x
  2. Step 2: Convert to fraction form
    81,186.78/112,029.84 = 50,962.44/x
  3. Step 3: Cross multiply
    81,186.78x = 112,029.84 × 50,962.44
  4. Step 4: Simplify right side
    81,186.78x = 5,709,313,999.21
  5. Step 5: Solve for x
    x = 5,709,313,999.21/81,186.78
  6. Step 6: Final answer
    x = 70,323.20

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1.5x scale

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.