Home / 90,580.28-135,908.84-48,449.39

Finding the Fourth Proportional to 90,580.28, 135,908.84 and 48,449.39

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Solution

The fourth proportional to 90,580.28, 135,908.84 and 48,449.39 is: 72,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,580.28 : 135,908.84 = 48,449.39 : x
  2. Step 2: Convert to fraction form
    90,580.28/135,908.84 = 48,449.39/x
  3. Step 3: Cross multiply
    90,580.28x = 135,908.84 × 48,449.39
  4. Step 4: Simplify right side
    90,580.28x = 6,584,700,327.15
  5. Step 5: Solve for x
    x = 6,584,700,327.15/90,580.28
  6. Step 6: Final answer
    x = 72,694.64

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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.