Home / 81,019.15-111,789.74-46,557.22

Finding the Fourth Proportional to 81,019.15, 111,789.74 and 46,557.22

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Solution

The fourth proportional to 81,019.15, 111,789.74 and 46,557.22 is: 64,239.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,019.15 : 111,789.74 = 46,557.22 : x
  2. Step 2: Convert to fraction form
    81,019.15/111,789.74 = 46,557.22/x
  3. Step 3: Cross multiply
    81,019.15x = 111,789.74 × 46,557.22
  4. Step 4: Simplify right side
    81,019.15x = 5,204,619,518.92
  5. Step 5: Solve for x
    x = 5,204,619,518.92/81,019.15
  6. Step 6: Final answer
    x = 64,239.37

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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.