Home / 77,575.75-107,047.96-43,581.57

Finding the Fourth Proportional to 77,575.75, 107,047.96 and 43,581.57

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Solution

The fourth proportional to 77,575.75, 107,047.96 and 43,581.57 is: 60,138.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,575.75 : 107,047.96 = 43,581.57 : x
  2. Step 2: Convert to fraction form
    77,575.75/107,047.96 = 43,581.57/x
  3. Step 3: Cross multiply
    77,575.75x = 107,047.96 × 43,581.57
  4. Step 4: Simplify right side
    77,575.75x = 4,665,317,626.86
  5. Step 5: Solve for x
    x = 4,665,317,626.86/77,575.75
  6. Step 6: Final answer
    x = 60,138.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.