Home / 81,026.78-111,809.67-50,802.44

Finding the Fourth Proportional to 81,026.78, 111,809.67 and 50,802.44

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Solution

The fourth proportional to 81,026.78, 111,809.67 and 50,802.44 is: 70,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,026.78 : 111,809.67 = 50,802.44 : x
  2. Step 2: Convert to fraction form
    81,026.78/111,809.67 = 50,802.44/x
  3. Step 3: Cross multiply
    81,026.78x = 111,809.67 × 50,802.44
  4. Step 4: Simplify right side
    81,026.78x = 5,680,204,051.59
  5. Step 5: Solve for x
    x = 5,680,204,051.59/81,026.78
  6. Step 6: Final answer
    x = 70,102.80

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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.