Home / 66,257.45-91,433.64-37,961.31

Finding the Fourth Proportional to 66,257.45, 91,433.64 and 37,961.31

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Solution

The fourth proportional to 66,257.45, 91,433.64 and 37,961.31 is: 52,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,257.45 : 91,433.64 = 37,961.31 : x
  2. Step 2: Convert to fraction form
    66,257.45/91,433.64 = 37,961.31/x
  3. Step 3: Cross multiply
    66,257.45x = 91,433.64 × 37,961.31
  4. Step 4: Simplify right side
    66,257.45x = 3,470,940,752.47
  5. Step 5: Solve for x
    x = 3,470,940,752.47/66,257.45
  6. Step 6: Final answer
    x = 52,385.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.