Home / 77,319.76-106,627.80-50,453.68

Finding the Fourth Proportional to 77,319.76, 106,627.80 and 50,453.68

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Solution

The fourth proportional to 77,319.76, 106,627.80 and 50,453.68 is: 69,578.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,319.76 : 106,627.80 = 50,453.68 : x
  2. Step 2: Convert to fraction form
    77,319.76/106,627.80 = 50,453.68/x
  3. Step 3: Cross multiply
    77,319.76x = 106,627.80 × 50,453.68
  4. Step 4: Simplify right side
    77,319.76x = 5,379,764,900.30
  5. Step 5: Solve for x
    x = 5,379,764,900.30/77,319.76
  6. Step 6: Final answer
    x = 69,578.14

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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.