Home / 81,199.32-111,999.46-52,943.28

Finding the Fourth Proportional to 81,199.32, 111,999.46 and 52,943.28

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Solution

The fourth proportional to 81,199.32, 111,999.46 and 52,943.28 is: 73,025.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,199.32 : 111,999.46 = 52,943.28 : x
  2. Step 2: Convert to fraction form
    81,199.32/111,999.46 = 52,943.28/x
  3. Step 3: Cross multiply
    81,199.32x = 111,999.46 × 52,943.28
  4. Step 4: Simplify right side
    81,199.32x = 5,929,618,770.63
  5. Step 5: Solve for x
    x = 5,929,618,770.63/81,199.32
  6. Step 6: Final answer
    x = 73,025.47

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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.