Home / 69,121.14-103,695.27-31,682.13

Finding the Fourth Proportional to 69,121.14, 103,695.27 and 31,682.13

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Solution

The fourth proportional to 69,121.14, 103,695.27 and 31,682.13 is: 47,529.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,121.14 : 103,695.27 = 31,682.13 : x
  2. Step 2: Convert to fraction form
    69,121.14/103,695.27 = 31,682.13/x
  3. Step 3: Cross multiply
    69,121.14x = 103,695.27 × 31,682.13
  4. Step 4: Simplify right side
    69,121.14x = 3,285,287,024.53
  5. Step 5: Solve for x
    x = 3,285,287,024.53/69,121.14
  6. Step 6: Final answer
    x = 47,529.41

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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.