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Finding the Fourth Proportional to 63,145.80, 87,135.00 and 34,849.66

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Solution

The fourth proportional to 63,145.80, 87,135.00 and 34,849.66 is: 48,089.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,145.80 : 87,135.00 = 34,849.66 : x
  2. Step 2: Convert to fraction form
    63,145.80/87,135.00 = 34,849.66/x
  3. Step 3: Cross multiply
    63,145.80x = 87,135.00 × 34,849.66
  4. Step 4: Simplify right side
    63,145.80x = 3,036,625,102.33
  5. Step 5: Solve for x
    x = 3,036,625,102.33/63,145.80
  6. Step 6: Final answer
    x = 48,089.11

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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.