Home / 86,579.46-129,770.85-36,628.38

Finding the Fourth Proportional to 86,579.46, 129,770.85 and 36,628.38

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Solution

The fourth proportional to 86,579.46, 129,770.85 and 36,628.38 is: 54,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,579.46 : 129,770.85 = 36,628.38 : x
  2. Step 2: Convert to fraction form
    86,579.46/129,770.85 = 36,628.38/x
  3. Step 3: Cross multiply
    86,579.46x = 129,770.85 × 36,628.38
  4. Step 4: Simplify right side
    86,579.46x = 4,753,296,006.72
  5. Step 5: Solve for x
    x = 4,753,296,006.72/86,579.46
  6. Step 6: Final answer
    x = 54,900.97

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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.