Home / 81,708.14-112,751.09-45,891.16

Finding the Fourth Proportional to 81,708.14, 112,751.09 and 45,891.16

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Solution

The fourth proportional to 81,708.14, 112,751.09 and 45,891.16 is: 63,326.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,708.14 : 112,751.09 = 45,891.16 : x
  2. Step 2: Convert to fraction form
    81,708.14/112,751.09 = 45,891.16/x
  3. Step 3: Cross multiply
    81,708.14x = 112,751.09 × 45,891.16
  4. Step 4: Simplify right side
    81,708.14x = 5,174,277,972.12
  5. Step 5: Solve for x
    x = 5,174,277,972.12/81,708.14
  6. Step 6: Final answer
    x = 63,326.34

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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.