Home / 81,027.28-111,810.36-50,802.94

Finding the Fourth Proportional to 81,027.28, 111,810.36 and 50,802.94

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Solution

The fourth proportional to 81,027.28, 111,810.36 and 50,802.94 is: 70,103.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,027.28 : 111,810.36 = 50,802.94 : x
  2. Step 2: Convert to fraction form
    81,027.28/111,810.36 = 50,802.94/x
  3. Step 3: Cross multiply
    81,027.28x = 111,810.36 × 50,802.94
  4. Step 4: Simplify right side
    81,027.28x = 5,680,295,010.46
  5. Step 5: Solve for x
    x = 5,680,295,010.46/81,027.28
  6. Step 6: Final answer
    x = 70,103.49

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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.