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Finding the Fourth Proportional to 83,804.45, 125,703.87 and 36,419.54

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Solution

The fourth proportional to 83,804.45, 125,703.87 and 36,419.54 is: 54,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,804.45 : 125,703.87 = 36,419.54 : x
  2. Step 2: Convert to fraction form
    83,804.45/125,703.87 = 36,419.54/x
  3. Step 3: Cross multiply
    83,804.45x = 125,703.87 × 36,419.54
  4. Step 4: Simplify right side
    83,804.45x = 4,578,077,680.55
  5. Step 5: Solve for x
    x = 4,578,077,680.55/83,804.45
  6. Step 6: Final answer
    x = 54,628.10

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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.