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Finding the Fourth Proportional to 32,129.45, 48,192.98 and 8,436.79

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Solution

The fourth proportional to 32,129.45, 48,192.98 and 8,436.79 is: 12,654.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,129.45 : 48,192.98 = 8,436.79 : x
  2. Step 2: Convert to fraction form
    32,129.45/48,192.98 = 8,436.79/x
  3. Step 3: Cross multiply
    32,129.45x = 48,192.98 × 8,436.79
  4. Step 4: Simplify right side
    32,129.45x = 406,593,846.16
  5. Step 5: Solve for x
    x = 406,593,846.16/32,129.45
  6. Step 6: Final answer
    x = 12,654.86

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1.5x scale

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.