Home / 105,286.41-145,305.24-57,546.93

Finding the Fourth Proportional to 105,286.41, 145,305.24 and 57,546.93

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Solution

The fourth proportional to 105,286.41, 145,305.24 and 57,546.93 is: 79,420.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,286.41 : 145,305.24 = 57,546.93 : x
  2. Step 2: Convert to fraction form
    105,286.41/145,305.24 = 57,546.93/x
  3. Step 3: Cross multiply
    105,286.41x = 145,305.24 × 57,546.93
  4. Step 4: Simplify right side
    105,286.41x = 8,361,870,474.91
  5. Step 5: Solve for x
    x = 8,361,870,474.91/105,286.41
  6. Step 6: Final answer
    x = 79,420.23

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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.