Home / 81,436.48-122,200.16-43,995.84

Finding the Fourth Proportional to 81,436.48, 122,200.16 and 43,995.84

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Solution

The fourth proportional to 81,436.48, 122,200.16 and 43,995.84 is: 66,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,436.48 : 122,200.16 = 43,995.84 : x
  2. Step 2: Convert to fraction form
    81,436.48/122,200.16 = 43,995.84/x
  3. Step 3: Cross multiply
    81,436.48x = 122,200.16 × 43,995.84
  4. Step 4: Simplify right side
    81,436.48x = 5,376,298,687.33
  5. Step 5: Solve for x
    x = 5,376,298,687.33/81,436.48
  6. Step 6: Final answer
    x = 66,018.31

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1.5x scale

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.