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Finding the Fourth Proportional to 84,036.76, 126,073.90 and 36,659.56

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Solution

The fourth proportional to 84,036.76, 126,073.90 and 36,659.56 is: 54,997.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,036.76 : 126,073.90 = 36,659.56 : x
  2. Step 2: Convert to fraction form
    84,036.76/126,073.90 = 36,659.56/x
  3. Step 3: Cross multiply
    84,036.76x = 126,073.90 × 36,659.56
  4. Step 4: Simplify right side
    84,036.76x = 4,621,813,701.48
  5. Step 5: Solve for x
    x = 4,621,813,701.48/84,036.76
  6. Step 6: Final answer
    x = 54,997.52

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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.