Home / 84,128.36-126,179.16-27,963.77

Finding the Fourth Proportional to 84,128.36, 126,179.16 and 27,963.77

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Solution

The fourth proportional to 84,128.36, 126,179.16 and 27,963.77 is: 41,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,128.36 : 126,179.16 = 27,963.77 : x
  2. Step 2: Convert to fraction form
    84,128.36/126,179.16 = 27,963.77/x
  3. Step 3: Cross multiply
    84,128.36x = 126,179.16 × 27,963.77
  4. Step 4: Simplify right side
    84,128.36x = 3,528,445,009.03
  5. Step 5: Solve for x
    x = 3,528,445,009.03/84,128.36
  6. Step 6: Final answer
    x = 41,941.21

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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.