Home / 90,299.61-135,480.20-34,155.88

Finding the Fourth Proportional to 90,299.61, 135,480.20 and 34,155.88

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Solution

The fourth proportional to 90,299.61, 135,480.20 and 34,155.88 is: 51,245.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,299.61 : 135,480.20 = 34,155.88 : x
  2. Step 2: Convert to fraction form
    90,299.61/135,480.20 = 34,155.88/x
  3. Step 3: Cross multiply
    90,299.61x = 135,480.20 × 34,155.88
  4. Step 4: Simplify right side
    90,299.61x = 4,627,444,944.10
  5. Step 5: Solve for x
    x = 4,627,444,944.10/90,299.61
  6. Step 6: Final answer
    x = 51,245.46

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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.