Home / 81,074.51-111,635.13-73,471.36

Finding the Fourth Proportional to 81,074.51, 111,635.13 and 73,471.36

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Solution

The fourth proportional to 81,074.51, 111,635.13 and 73,471.36 is: 101,166.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,074.51 : 111,635.13 = 73,471.36 : x
  2. Step 2: Convert to fraction form
    81,074.51/111,635.13 = 73,471.36/x
  3. Step 3: Cross multiply
    81,074.51x = 111,635.13 × 73,471.36
  4. Step 4: Simplify right side
    81,074.51x = 8,201,984,821.31
  5. Step 5: Solve for x
    x = 8,201,984,821.31/81,074.51
  6. Step 6: Final answer
    x = 101,166.01

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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.