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Finding the Fourth Proportional to 89,253.86, 133,876.86 and 30,089.30

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Solution

The fourth proportional to 89,253.86, 133,876.86 and 30,089.30 is: 45,132.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,253.86 : 133,876.86 = 30,089.30 : x
  2. Step 2: Convert to fraction form
    89,253.86/133,876.86 = 30,089.30/x
  3. Step 3: Cross multiply
    89,253.86x = 133,876.86 × 30,089.30
  4. Step 4: Simplify right side
    89,253.86x = 4,028,261,003.60
  5. Step 5: Solve for x
    x = 4,028,261,003.60/89,253.86
  6. Step 6: Final answer
    x = 45,132.63

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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.