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Finding the Fourth Proportional to 89,341.54, 133,982.55 and 36,019.74

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Solution

The fourth proportional to 89,341.54, 133,982.55 and 36,019.74 is: 54,017.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,341.54 : 133,982.55 = 36,019.74 : x
  2. Step 2: Convert to fraction form
    89,341.54/133,982.55 = 36,019.74/x
  3. Step 3: Cross multiply
    89,341.54x = 133,982.55 × 36,019.74
  4. Step 4: Simplify right side
    89,341.54x = 4,826,016,615.54
  5. Step 5: Solve for x
    x = 4,826,016,615.54/89,341.54
  6. Step 6: Final answer
    x = 54,017.61

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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.