Home / 66,619.72-91,935.30-36,811.72

Finding the Fourth Proportional to 66,619.72, 91,935.30 and 36,811.72

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Solution

The fourth proportional to 66,619.72, 91,935.30 and 36,811.72 is: 50,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,619.72 : 91,935.30 = 36,811.72 : x
  2. Step 2: Convert to fraction form
    66,619.72/91,935.30 = 36,811.72/x
  3. Step 3: Cross multiply
    66,619.72x = 91,935.30 × 36,811.72
  4. Step 4: Simplify right side
    66,619.72x = 3,384,296,521.72
  5. Step 5: Solve for x
    x = 3,384,296,521.72/66,619.72
  6. Step 6: Final answer
    x = 50,800.22

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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.