Home / 68,118.82-102,178.14-21,375.34

Finding the Fourth Proportional to 68,118.82, 102,178.14 and 21,375.34

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Solution

The fourth proportional to 68,118.82, 102,178.14 and 21,375.34 is: 32,062.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,118.82 : 102,178.14 = 21,375.34 : x
  2. Step 2: Convert to fraction form
    68,118.82/102,178.14 = 21,375.34/x
  3. Step 3: Cross multiply
    68,118.82x = 102,178.14 × 21,375.34
  4. Step 4: Simplify right side
    68,118.82x = 2,184,092,483.07
  5. Step 5: Solve for x
    x = 2,184,092,483.07/68,118.82
  6. Step 6: Final answer
    x = 32,062.98

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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.