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Finding the Fourth Proportional to 47,168.79, 70,753.14 and 12,108.44

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Solution

The fourth proportional to 47,168.79, 70,753.14 and 12,108.44 is: 18,162.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,168.79 : 70,753.14 = 12,108.44 : x
  2. Step 2: Convert to fraction form
    47,168.79/70,753.14 = 12,108.44/x
  3. Step 3: Cross multiply
    47,168.79x = 70,753.14 × 12,108.44
  4. Step 4: Simplify right side
    47,168.79x = 856,709,796.74
  5. Step 5: Solve for x
    x = 856,709,796.74/47,168.79
  6. Step 6: Final answer
    x = 18,162.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.