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Finding the Fourth Proportional to 90,064.86, 135,076.74 and 33,910.89

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Solution

The fourth proportional to 90,064.86, 135,076.74 and 33,910.89 is: 50,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,064.86 : 135,076.74 = 33,910.89 : x
  2. Step 2: Convert to fraction form
    90,064.86/135,076.74 = 33,910.89/x
  3. Step 3: Cross multiply
    90,064.86x = 135,076.74 × 33,910.89
  4. Step 4: Simplify right side
    90,064.86x = 4,580,572,471.70
  5. Step 5: Solve for x
    x = 4,580,572,471.70/90,064.86
  6. Step 6: Final answer
    x = 50,858.60

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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.