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Finding the Fourth Proportional to 68,342.96, 102,513.80 and 21,595.84

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Solution

The fourth proportional to 68,342.96, 102,513.80 and 21,595.84 is: 32,393.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,342.96 : 102,513.80 = 21,595.84 : x
  2. Step 2: Convert to fraction form
    68,342.96/102,513.80 = 21,595.84/x
  3. Step 3: Cross multiply
    68,342.96x = 102,513.80 × 21,595.84
  4. Step 4: Simplify right side
    68,342.96x = 2,213,871,622.59
  5. Step 5: Solve for x
    x = 2,213,871,622.59/68,342.96
  6. Step 6: Final answer
    x = 32,393.56

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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.