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Finding the Fourth Proportional to 63,564.78, 87,699.33 and 36,703.74

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Solution

The fourth proportional to 63,564.78, 87,699.33 and 36,703.74 is: 50,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,564.78 : 87,699.33 = 36,703.74 : x
  2. Step 2: Convert to fraction form
    63,564.78/87,699.33 = 36,703.74/x
  3. Step 3: Cross multiply
    63,564.78x = 87,699.33 × 36,703.74
  4. Step 4: Simplify right side
    63,564.78x = 3,218,893,406.49
  5. Step 5: Solve for x
    x = 3,218,893,406.49/63,564.78
  6. Step 6: Final answer
    x = 50,639.57

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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.