Home / 80,977.31-121,465.97-41,509.25

Finding the Fourth Proportional to 80,977.31, 121,465.97 and 41,509.25

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Solution

The fourth proportional to 80,977.31, 121,465.97 and 41,509.25 is: 62,263.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,977.31 : 121,465.97 = 41,509.25 : x
  2. Step 2: Convert to fraction form
    80,977.31/121,465.97 = 41,509.25/x
  3. Step 3: Cross multiply
    80,977.31x = 121,465.97 × 41,509.25
  4. Step 4: Simplify right side
    80,977.31x = 5,041,961,107.68
  5. Step 5: Solve for x
    x = 5,041,961,107.68/80,977.31
  6. Step 6: Final answer
    x = 62,263.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.