Home / 85,542.72-128,321.26-22,362.72

Finding the Fourth Proportional to 85,542.72, 128,321.26 and 22,362.72

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Solution

The fourth proportional to 85,542.72, 128,321.26 and 22,362.72 is: 33,545.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,542.72 : 128,321.26 = 22,362.72 : x
  2. Step 2: Convert to fraction form
    85,542.72/128,321.26 = 22,362.72/x
  3. Step 3: Cross multiply
    85,542.72x = 128,321.26 × 22,362.72
  4. Step 4: Simplify right side
    85,542.72x = 2,869,612,407.43
  5. Step 5: Solve for x
    x = 2,869,612,407.43/85,542.72
  6. Step 6: Final answer
    x = 33,545.96

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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.