Home / 68,587.36-102,920.40-36,997.36

Finding the Fourth Proportional to 68,587.36, 102,920.40 and 36,997.36

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Solution

The fourth proportional to 68,587.36, 102,920.40 and 36,997.36 is: 55,517.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,587.36 : 102,920.40 = 36,997.36 : x
  2. Step 2: Convert to fraction form
    68,587.36/102,920.40 = 36,997.36/x
  3. Step 3: Cross multiply
    68,587.36x = 102,920.40 × 36,997.36
  4. Step 4: Simplify right side
    68,587.36x = 3,807,783,090.14
  5. Step 5: Solve for x
    x = 3,807,783,090.14/68,587.36
  6. Step 6: Final answer
    x = 55,517.27

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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.