Home / 90,902.67-136,360.22-30,906.72

Finding the Fourth Proportional to 90,902.67, 136,360.22 and 30,906.72

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Solution

The fourth proportional to 90,902.67, 136,360.22 and 30,906.72 is: 46,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,902.67 : 136,360.22 = 30,906.72 : x
  2. Step 2: Convert to fraction form
    90,902.67/136,360.22 = 30,906.72/x
  3. Step 3: Cross multiply
    90,902.67x = 136,360.22 × 30,906.72
  4. Step 4: Simplify right side
    90,902.67x = 4,214,446,984.14
  5. Step 5: Solve for x
    x = 4,214,446,984.14/90,902.67
  6. Step 6: Final answer
    x = 46,362.19

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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.