Home / 81,134.68-111,961.86-45,317.56

Finding the Fourth Proportional to 81,134.68, 111,961.86 and 45,317.56

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Solution

The fourth proportional to 81,134.68, 111,961.86 and 45,317.56 is: 62,536.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,134.68 : 111,961.86 = 45,317.56 : x
  2. Step 2: Convert to fraction form
    81,134.68/111,961.86 = 45,317.56/x
  3. Step 3: Cross multiply
    81,134.68x = 111,961.86 × 45,317.56
  4. Step 4: Simplify right side
    81,134.68x = 5,073,838,308.26
  5. Step 5: Solve for x
    x = 5,073,838,308.26/81,134.68
  6. Step 6: Final answer
    x = 62,536.00

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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.