Home / 85,469.45-128,204.27-22,289.53

Finding the Fourth Proportional to 85,469.45, 128,204.27 and 22,289.53

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Solution

The fourth proportional to 85,469.45, 128,204.27 and 22,289.53 is: 33,434.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,469.45 : 128,204.27 = 22,289.53 : x
  2. Step 2: Convert to fraction form
    85,469.45/128,204.27 = 22,289.53/x
  3. Step 3: Cross multiply
    85,469.45x = 128,204.27 × 22,289.53
  4. Step 4: Simplify right side
    85,469.45x = 2,857,612,922.29
  5. Step 5: Solve for x
    x = 2,857,612,922.29/85,469.45
  6. Step 6: Final answer
    x = 33,434.32

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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.