Home / 91,011.75-136,579.14-31,847.94

Finding the Fourth Proportional to 91,011.75, 136,579.14 and 31,847.94

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Solution

The fourth proportional to 91,011.75, 136,579.14 and 31,847.94 is: 47,793.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,011.75 : 136,579.14 = 31,847.94 : x
  2. Step 2: Convert to fraction form
    91,011.75/136,579.14 = 31,847.94/x
  3. Step 3: Cross multiply
    91,011.75x = 136,579.14 × 31,847.94
  4. Step 4: Simplify right side
    91,011.75x = 4,349,763,743.80
  5. Step 5: Solve for x
    x = 4,349,763,743.80/91,011.75
  6. Step 6: Final answer
    x = 47,793.43

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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.