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Finding the Fourth Proportional to 57,288.40, 85,932.60 and 33,902.80

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Solution

The fourth proportional to 57,288.40, 85,932.60 and 33,902.80 is: 50,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,288.40 : 85,932.60 = 33,902.80 : x
  2. Step 2: Convert to fraction form
    57,288.40/85,932.60 = 33,902.80/x
  3. Step 3: Cross multiply
    57,288.40x = 85,932.60 × 33,902.80
  4. Step 4: Simplify right side
    57,288.40x = 2,913,355,751.28
  5. Step 5: Solve for x
    x = 2,913,355,751.28/57,288.40
  6. Step 6: Final answer
    x = 50,854.20

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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.