Home / 90,181.53-135,270.92-31,017.71

Finding the Fourth Proportional to 90,181.53, 135,270.92 and 31,017.71

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Solution

The fourth proportional to 90,181.53, 135,270.92 and 31,017.71 is: 46,526.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,181.53 : 135,270.92 = 31,017.71 : x
  2. Step 2: Convert to fraction form
    90,181.53/135,270.92 = 31,017.71/x
  3. Step 3: Cross multiply
    90,181.53x = 135,270.92 × 31,017.71
  4. Step 4: Simplify right side
    90,181.53x = 4,195,794,167.99
  5. Step 5: Solve for x
    x = 4,195,794,167.99/90,181.53
  6. Step 6: Final answer
    x = 46,526.09

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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.