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Finding the Fourth Proportional to 65,484.43, 98,223.91 and 18,737.31

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Solution

The fourth proportional to 65,484.43, 98,223.91 and 18,737.31 is: 28,105.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,484.43 : 98,223.91 = 18,737.31 : x
  2. Step 2: Convert to fraction form
    65,484.43/98,223.91 = 18,737.31/x
  3. Step 3: Cross multiply
    65,484.43x = 98,223.91 × 18,737.31
  4. Step 4: Simplify right side
    65,484.43x = 1,840,451,699.12
  5. Step 5: Solve for x
    x = 1,840,451,699.12/65,484.43
  6. Step 6: Final answer
    x = 28,105.18

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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.