Home / 87,318.76-131,035.50-47,903.56

Finding the Fourth Proportional to 87,318.76, 131,035.50 and 47,903.56

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Solution

The fourth proportional to 87,318.76, 131,035.50 and 47,903.56 is: 71,886.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,318.76 : 131,035.50 = 47,903.56 : x
  2. Step 2: Convert to fraction form
    87,318.76/131,035.50 = 47,903.56/x
  3. Step 3: Cross multiply
    87,318.76x = 131,035.50 × 47,903.56
  4. Step 4: Simplify right side
    87,318.76x = 6,277,066,936.38
  5. Step 5: Solve for x
    x = 6,277,066,936.38/87,318.76
  6. Step 6: Final answer
    x = 71,886.81

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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.