Home / 81,682.58-112,724.49-45,873.36

Finding the Fourth Proportional to 81,682.58, 112,724.49 and 45,873.36

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Solution

The fourth proportional to 81,682.58, 112,724.49 and 45,873.36 is: 63,306.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,682.58 : 112,724.49 = 45,873.36 : x
  2. Step 2: Convert to fraction form
    81,682.58/112,724.49 = 45,873.36/x
  3. Step 3: Cross multiply
    81,682.58x = 112,724.49 × 45,873.36
  4. Step 4: Simplify right side
    81,682.58x = 5,171,051,110.59
  5. Step 5: Solve for x
    x = 5,171,051,110.59/81,682.58
  6. Step 6: Final answer
    x = 63,306.66

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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.