Home / 84,128.60-126,165.59-27,953.63

Finding the Fourth Proportional to 84,128.60, 126,165.59 and 27,953.63

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Solution

The fourth proportional to 84,128.60, 126,165.59 and 27,953.63 is: 41,921.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,128.60 : 126,165.59 = 27,953.63 : x
  2. Step 2: Convert to fraction form
    84,128.60/126,165.59 = 27,953.63/x
  3. Step 3: Cross multiply
    84,128.60x = 126,165.59 × 27,953.63
  4. Step 4: Simplify right side
    84,128.60x = 3,526,785,451.00
  5. Step 5: Solve for x
    x = 3,526,785,451.00/84,128.60
  6. Step 6: Final answer
    x = 41,921.36

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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.