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Finding the Fourth Proportional to 63,640, 87,823.23 and 35,345.92

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Solution

The fourth proportional to 63,640, 87,823.23 and 35,345.92 is: 48,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,640 : 87,823.23 = 35,345.92 : x
  2. Step 2: Convert to fraction form
    63,640/87,823.23 = 35,345.92/x
  3. Step 3: Cross multiply
    63,640x = 87,823.23 × 35,345.92
  4. Step 4: Simplify right side
    63,640x = 3,104,192,861.72
  5. Step 5: Solve for x
    x = 3,104,192,861.72/63,640
  6. Step 6: Final answer
    x = 48,777.39

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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.