Home / 91,439.94-137,066.34-31,450.44

Finding the Fourth Proportional to 91,439.94, 137,066.34 and 31,450.44

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Solution

The fourth proportional to 91,439.94, 137,066.34 and 31,450.44 is: 47,143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,439.94 : 137,066.34 = 31,450.44 : x
  2. Step 2: Convert to fraction form
    91,439.94/137,066.34 = 31,450.44/x
  3. Step 3: Cross multiply
    91,439.94x = 137,066.34 × 31,450.44
  4. Step 4: Simplify right side
    91,439.94x = 4,310,796,702.19
  5. Step 5: Solve for x
    x = 4,310,796,702.19/91,439.94
  6. Step 6: Final answer
    x = 47,143.48

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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.