Home / 81,664.80-112,697.49-45,857.13

Finding the Fourth Proportional to 81,664.80, 112,697.49 and 45,857.13

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Solution

The fourth proportional to 81,664.80, 112,697.49 and 45,857.13 is: 63,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,664.80 : 112,697.49 = 45,857.13 : x
  2. Step 2: Convert to fraction form
    81,664.80/112,697.49 = 45,857.13/x
  3. Step 3: Cross multiply
    81,664.80x = 112,697.49 × 45,857.13
  4. Step 4: Simplify right side
    81,664.80x = 5,167,983,449.60
  5. Step 5: Solve for x
    x = 5,167,983,449.60/81,664.80
  6. Step 6: Final answer
    x = 63,282.88

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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.