Home / 80,957.44-121,436.93-31,025.66

Finding the Fourth Proportional to 80,957.44, 121,436.93 and 31,025.66

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Solution

The fourth proportional to 80,957.44, 121,436.93 and 31,025.66 is: 46,538.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,957.44 : 121,436.93 = 31,025.66 : x
  2. Step 2: Convert to fraction form
    80,957.44/121,436.93 = 31,025.66/x
  3. Step 3: Cross multiply
    80,957.44x = 121,436.93 × 31,025.66
  4. Step 4: Simplify right side
    80,957.44x = 3,767,661,282.78
  5. Step 5: Solve for x
    x = 3,767,661,282.78/80,957.44
  6. Step 6: Final answer
    x = 46,538.79

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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.