Home / 81,220.36-112,084.78-44,921.20

Finding the Fourth Proportional to 81,220.36, 112,084.78 and 44,921.20

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Solution

The fourth proportional to 81,220.36, 112,084.78 and 44,921.20 is: 61,991.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,220.36 : 112,084.78 = 44,921.20 : x
  2. Step 2: Convert to fraction form
    81,220.36/112,084.78 = 44,921.20/x
  3. Step 3: Cross multiply
    81,220.36x = 112,084.78 × 44,921.20
  4. Step 4: Simplify right side
    81,220.36x = 5,034,982,819.34
  5. Step 5: Solve for x
    x = 5,034,982,819.34/81,220.36
  6. Step 6: Final answer
    x = 61,991.63

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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.