Home / 84,128.04-126,211.20-27,963.60

Finding the Fourth Proportional to 84,128.04, 126,211.20 and 27,963.60

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Solution

The fourth proportional to 84,128.04, 126,211.20 and 27,963.60 is: 41,951.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,128.04 : 126,211.20 = 27,963.60 : x
  2. Step 2: Convert to fraction form
    84,128.04/126,211.20 = 27,963.60/x
  3. Step 3: Cross multiply
    84,128.04x = 126,211.20 × 27,963.60
  4. Step 4: Simplify right side
    84,128.04x = 3,529,319,512.32
  5. Step 5: Solve for x
    x = 3,529,319,512.32/84,128.04
  6. Step 6: Final answer
    x = 41,951.76

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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.