Home / 66,443.45-99,705.88-26,481.61

Finding the Fourth Proportional to 66,443.45, 99,705.88 and 26,481.61

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Solution

The fourth proportional to 66,443.45, 99,705.88 and 26,481.61 is: 39,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,443.45 : 99,705.88 = 26,481.61 : x
  2. Step 2: Convert to fraction form
    66,443.45/99,705.88 = 26,481.61/x
  3. Step 3: Cross multiply
    66,443.45x = 99,705.88 × 26,481.61
  4. Step 4: Simplify right side
    66,443.45x = 2,640,371,913.40
  5. Step 5: Solve for x
    x = 2,640,371,913.40/66,443.45
  6. Step 6: Final answer
    x = 39,738.63

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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.