Home / 56,286.86-84,319.32-45,768.75

Finding the Fourth Proportional to 56,286.86, 84,319.32 and 45,768.75

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Solution

The fourth proportional to 56,286.86, 84,319.32 and 45,768.75 is: 68,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,286.86 : 84,319.32 = 45,768.75 : x
  2. Step 2: Convert to fraction form
    56,286.86/84,319.32 = 45,768.75/x
  3. Step 3: Cross multiply
    56,286.86x = 84,319.32 × 45,768.75
  4. Step 4: Simplify right side
    56,286.86x = 3,859,189,732.69
  5. Step 5: Solve for x
    x = 3,859,189,732.69/56,286.86
  6. Step 6: Final answer
    x = 68,562.90

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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.