Home / 85,467.45-128,201.27-22,287.53

Finding the Fourth Proportional to 85,467.45, 128,201.27 and 22,287.53

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Solution

The fourth proportional to 85,467.45, 128,201.27 and 22,287.53 is: 33,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,467.45 : 128,201.27 = 22,287.53 : x
  2. Step 2: Convert to fraction form
    85,467.45/128,201.27 = 22,287.53/x
  3. Step 3: Cross multiply
    85,467.45x = 128,201.27 × 22,287.53
  4. Step 4: Simplify right side
    85,467.45x = 2,857,288,898.72
  5. Step 5: Solve for x
    x = 2,857,288,898.72/85,467.45
  6. Step 6: Final answer
    x = 33,431.31

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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.