Home / 81,579.33-112,694.18-62,955.81

Finding the Fourth Proportional to 81,579.33, 112,694.18 and 62,955.81

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Solution

The fourth proportional to 81,579.33, 112,694.18 and 62,955.81 is: 86,967.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,579.33 : 112,694.18 = 62,955.81 : x
  2. Step 2: Convert to fraction form
    81,579.33/112,694.18 = 62,955.81/x
  3. Step 3: Cross multiply
    81,579.33x = 112,694.18 × 62,955.81
  4. Step 4: Simplify right side
    81,579.33x = 7,094,753,351.14
  5. Step 5: Solve for x
    x = 7,094,753,351.14/81,579.33
  6. Step 6: Final answer
    x = 86,967.53

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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.