Home / 81,015.96-111,801.66-45,203.82

Finding the Fourth Proportional to 81,015.96, 111,801.66 and 45,203.82

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Solution

The fourth proportional to 81,015.96, 111,801.66 and 45,203.82 is: 62,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,015.96 : 111,801.66 = 45,203.82 : x
  2. Step 2: Convert to fraction form
    81,015.96/111,801.66 = 45,203.82/x
  3. Step 3: Cross multiply
    81,015.96x = 111,801.66 × 45,203.82
  4. Step 4: Simplify right side
    81,015.96x = 5,053,862,114.34
  5. Step 5: Solve for x
    x = 5,053,862,114.34/81,015.96
  6. Step 6: Final answer
    x = 62,381.07

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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.