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Finding the Fourth Proportional to 89,997.66, 135,000.12 and 30,839.31

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Solution

The fourth proportional to 89,997.66, 135,000.12 and 30,839.31 is: 46,260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,997.66 : 135,000.12 = 30,839.31 : x
  2. Step 2: Convert to fraction form
    89,997.66/135,000.12 = 30,839.31/x
  3. Step 3: Cross multiply
    89,997.66x = 135,000.12 × 30,839.31
  4. Step 4: Simplify right side
    89,997.66x = 4,163,310,550.72
  5. Step 5: Solve for x
    x = 4,163,310,550.72/89,997.66
  6. Step 6: Final answer
    x = 46,260.21

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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.