Home / 69,128.32-103,663.13-29,165.23

Finding the Fourth Proportional to 69,128.32, 103,663.13 and 29,165.23

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Solution

The fourth proportional to 69,128.32, 103,663.13 and 29,165.23 is: 43,735.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,128.32 : 103,663.13 = 29,165.23 : x
  2. Step 2: Convert to fraction form
    69,128.32/103,663.13 = 29,165.23/x
  3. Step 3: Cross multiply
    69,128.32x = 103,663.13 × 29,165.23
  4. Step 4: Simplify right side
    69,128.32x = 3,023,359,028.97
  5. Step 5: Solve for x
    x = 3,023,359,028.97/69,128.32
  6. Step 6: Final answer
    x = 43,735.46

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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.