Home / 45,101.87-67,656.78-11,821.82

Finding the Fourth Proportional to 45,101.87, 67,656.78 and 11,821.82

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Solution

The fourth proportional to 45,101.87, 67,656.78 and 11,821.82 is: 17,733.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,101.87 : 67,656.78 = 11,821.82 : x
  2. Step 2: Convert to fraction form
    45,101.87/67,656.78 = 11,821.82/x
  3. Step 3: Cross multiply
    45,101.87x = 67,656.78 × 11,821.82
  4. Step 4: Simplify right side
    45,101.87x = 799,826,274.94
  5. Step 5: Solve for x
    x = 799,826,274.94/45,101.87
  6. Step 6: Final answer
    x = 17,733.77

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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.