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Finding the Fourth Proportional to 57,345.80, 85,845.90 and 50,433.80

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Solution

The fourth proportional to 57,345.80, 85,845.90 and 50,433.80 is: 75,498.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,345.80 : 85,845.90 = 50,433.80 : x
  2. Step 2: Convert to fraction form
    57,345.80/85,845.90 = 50,433.80/x
  3. Step 3: Cross multiply
    57,345.80x = 85,845.90 × 50,433.80
  4. Step 4: Simplify right side
    57,345.80x = 4,329,534,951.42
  5. Step 5: Solve for x
    x = 4,329,534,951.42/57,345.80
  6. Step 6: Final answer
    x = 75,498.73

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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.