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Finding the Fourth Proportional to 63,699.84, 87,908.76 and 35,406

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Solution

The fourth proportional to 63,699.84, 87,908.76 and 35,406 is: 48,861.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,699.84 : 87,908.76 = 35,406 : x
  2. Step 2: Convert to fraction form
    63,699.84/87,908.76 = 35,406/x
  3. Step 3: Cross multiply
    63,699.84x = 87,908.76 × 35,406
  4. Step 4: Simplify right side
    63,699.84x = 3,112,497,556.56
  5. Step 5: Solve for x
    x = 3,112,497,556.56/63,699.84
  6. Step 6: Final answer
    x = 48,861.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.