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Finding the Fourth Proportional to 85,452.08, 128,224.08 and 35,566.61

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Solution

The fourth proportional to 85,452.08, 128,224.08 and 35,566.61 is: 53,369.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,452.08 : 128,224.08 = 35,566.61 : x
  2. Step 2: Convert to fraction form
    85,452.08/128,224.08 = 35,566.61/x
  3. Step 3: Cross multiply
    85,452.08x = 128,224.08 × 35,566.61
  4. Step 4: Simplify right side
    85,452.08x = 4,560,495,204.85
  5. Step 5: Solve for x
    x = 4,560,495,204.85/85,452.08
  6. Step 6: Final answer
    x = 53,369.04

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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.