Home / 77,749.12-107,292.48-43,757.60

Finding the Fourth Proportional to 77,749.12, 107,292.48 and 43,757.60

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Solution

The fourth proportional to 77,749.12, 107,292.48 and 43,757.60 is: 60,384.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,749.12 : 107,292.48 = 43,757.60 : x
  2. Step 2: Convert to fraction form
    77,749.12/107,292.48 = 43,757.60/x
  3. Step 3: Cross multiply
    77,749.12x = 107,292.48 × 43,757.60
  4. Step 4: Simplify right side
    77,749.12x = 4,694,861,422.85
  5. Step 5: Solve for x
    x = 4,694,861,422.85/77,749.12
  6. Step 6: Final answer
    x = 60,384.75

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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.