Home / 81,668.33-112,694.45-45,850.13

Finding the Fourth Proportional to 81,668.33, 112,694.45 and 45,850.13

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Solution

The fourth proportional to 81,668.33, 112,694.45 and 45,850.13 is: 63,268.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,668.33 : 112,694.45 = 45,850.13 : x
  2. Step 2: Convert to fraction form
    81,668.33/112,694.45 = 45,850.13/x
  3. Step 3: Cross multiply
    81,668.33x = 112,694.45 × 45,850.13
  4. Step 4: Simplify right side
    81,668.33x = 5,167,054,390.06
  5. Step 5: Solve for x
    x = 5,167,054,390.06/81,668.33
  6. Step 6: Final answer
    x = 63,268.77

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1.5x scale

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.