Home / 77,675.76-107,190.14-43,685.73

Finding the Fourth Proportional to 77,675.76, 107,190.14 and 43,685.73

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Solution

The fourth proportional to 77,675.76, 107,190.14 and 43,685.73 is: 60,284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,675.76 : 107,190.14 = 43,685.73 : x
  2. Step 2: Convert to fraction form
    77,675.76/107,190.14 = 43,685.73/x
  3. Step 3: Cross multiply
    77,675.76x = 107,190.14 × 43,685.73
  4. Step 4: Simplify right side
    77,675.76x = 4,682,679,296.27
  5. Step 5: Solve for x
    x = 4,682,679,296.27/77,675.76
  6. Step 6: Final answer
    x = 60,284.95

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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.