Home / 84,086.63-126,160.71-39,129.44

Finding the Fourth Proportional to 84,086.63, 126,160.71 and 39,129.44

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Solution

The fourth proportional to 84,086.63, 126,160.71 and 39,129.44 is: 58,708.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,086.63 : 126,160.71 = 39,129.44 : x
  2. Step 2: Convert to fraction form
    84,086.63/126,160.71 = 39,129.44/x
  3. Step 3: Cross multiply
    84,086.63x = 126,160.71 × 39,129.44
  4. Step 4: Simplify right side
    84,086.63x = 4,936,597,105.85
  5. Step 5: Solve for x
    x = 4,936,597,105.85/84,086.63
  6. Step 6: Final answer
    x = 58,708.47

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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.