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Finding the Fourth Proportional to 89,673.86, 134,445.18 and 30,493.64

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Solution

The fourth proportional to 89,673.86, 134,445.18 and 30,493.64 is: 45,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,673.86 : 134,445.18 = 30,493.64 : x
  2. Step 2: Convert to fraction form
    89,673.86/134,445.18 = 30,493.64/x
  3. Step 3: Cross multiply
    89,673.86x = 134,445.18 × 30,493.64
  4. Step 4: Simplify right side
    89,673.86x = 4,099,722,918.66
  5. Step 5: Solve for x
    x = 4,099,722,918.66/89,673.86
  6. Step 6: Final answer
    x = 45,718.15

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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.