Home / 90,600.75-135,925.74-31,441.04

Finding the Fourth Proportional to 90,600.75, 135,925.74 and 31,441.04

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Solution

The fourth proportional to 90,600.75, 135,925.74 and 31,441.04 is: 47,170.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,600.75 : 135,925.74 = 31,441.04 : x
  2. Step 2: Convert to fraction form
    90,600.75/135,925.74 = 31,441.04/x
  3. Step 3: Cross multiply
    90,600.75x = 135,925.74 × 31,441.04
  4. Step 4: Simplify right side
    90,600.75x = 4,273,645,948.74
  5. Step 5: Solve for x
    x = 4,273,645,948.74/90,600.75
  6. Step 6: Final answer
    x = 47,170.09

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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.