Home / 77,632.97-107,121.47-43,635.14

Finding the Fourth Proportional to 77,632.97, 107,121.47 and 43,635.14

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Solution

The fourth proportional to 77,632.97, 107,121.47 and 43,635.14 is: 60,209.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,632.97 : 107,121.47 = 43,635.14 : x
  2. Step 2: Convert to fraction form
    77,632.97/107,121.47 = 43,635.14/x
  3. Step 3: Cross multiply
    77,632.97x = 107,121.47 × 43,635.14
  4. Step 4: Simplify right side
    77,632.97x = 4,674,259,586.67
  5. Step 5: Solve for x
    x = 4,674,259,586.67/77,632.97
  6. Step 6: Final answer
    x = 60,209.73

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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.