Home / 91,007.75-136,573.09-31,843.94

Finding the Fourth Proportional to 91,007.75, 136,573.09 and 31,843.94

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Solution

The fourth proportional to 91,007.75, 136,573.09 and 31,843.94 is: 47,787.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,007.75 : 136,573.09 = 31,843.94 : x
  2. Step 2: Convert to fraction form
    91,007.75/136,573.09 = 31,843.94/x
  3. Step 3: Cross multiply
    91,007.75x = 136,573.09 × 31,843.94
  4. Step 4: Simplify right side
    91,007.75x = 4,349,024,521.10
  5. Step 5: Solve for x
    x = 4,349,024,521.10/91,007.75
  6. Step 6: Final answer
    x = 47,787.41

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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.