Home / 90,628.10-135,940.73-22,240.38

Finding the Fourth Proportional to 90,628.10, 135,940.73 and 22,240.38

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Solution

The fourth proportional to 90,628.10, 135,940.73 and 22,240.38 is: 33,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,628.10 : 135,940.73 = 22,240.38 : x
  2. Step 2: Convert to fraction form
    90,628.10/135,940.73 = 22,240.38/x
  3. Step 3: Cross multiply
    90,628.10x = 135,940.73 × 22,240.38
  4. Step 4: Simplify right side
    90,628.10x = 3,023,373,381.48
  5. Step 5: Solve for x
    x = 3,023,373,381.48/90,628.10
  6. Step 6: Final answer
    x = 33,360.22

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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.