Home / 84,128.26-126,107.22-54,564.88

Finding the Fourth Proportional to 84,128.26, 126,107.22 and 54,564.88

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Solution

The fourth proportional to 84,128.26, 126,107.22 and 54,564.88 is: 81,792.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,128.26 : 126,107.22 = 54,564.88 : x
  2. Step 2: Convert to fraction form
    84,128.26/126,107.22 = 54,564.88/x
  3. Step 3: Cross multiply
    84,128.26x = 126,107.22 × 54,564.88
  4. Step 4: Simplify right side
    84,128.26x = 6,881,025,326.43
  5. Step 5: Solve for x
    x = 6,881,025,326.43/84,128.26
  6. Step 6: Final answer
    x = 81,792.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.