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Finding the Fourth Proportional to 80,703.96, 121,054.95 and 36,299.35

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Solution

The fourth proportional to 80,703.96, 121,054.95 and 36,299.35 is: 54,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,703.96 : 121,054.95 = 36,299.35 : x
  2. Step 2: Convert to fraction form
    80,703.96/121,054.95 = 36,299.35/x
  3. Step 3: Cross multiply
    80,703.96x = 121,054.95 × 36,299.35
  4. Step 4: Simplify right side
    80,703.96x = 4,394,215,999.28
  5. Step 5: Solve for x
    x = 4,394,215,999.28/80,703.96
  6. Step 6: Final answer
    x = 54,448.58

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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.