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Finding the Fourth Proportional to 84,259.82, 126,412.82 and 36,866.32

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Solution

The fourth proportional to 84,259.82, 126,412.82 and 36,866.32 is: 55,309.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,259.82 : 126,412.82 = 36,866.32 : x
  2. Step 2: Convert to fraction form
    84,259.82/126,412.82 = 36,866.32/x
  3. Step 3: Cross multiply
    84,259.82x = 126,412.82 × 36,866.32
  4. Step 4: Simplify right side
    84,259.82x = 4,660,375,474.22
  5. Step 5: Solve for x
    x = 4,660,375,474.22/84,259.82
  6. Step 6: Final answer
    x = 55,309.58

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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.