Home / 90,717.94-136,138.83-31,553.02

Finding the Fourth Proportional to 90,717.94, 136,138.83 and 31,553.02

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Solution

The fourth proportional to 90,717.94, 136,138.83 and 31,553.02 is: 47,351.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,717.94 : 136,138.83 = 31,553.02 : x
  2. Step 2: Convert to fraction form
    90,717.94/136,138.83 = 31,553.02/x
  3. Step 3: Cross multiply
    90,717.94x = 136,138.83 × 31,553.02
  4. Step 4: Simplify right side
    90,717.94x = 4,295,591,225.77
  5. Step 5: Solve for x
    x = 4,295,591,225.77/90,717.94
  6. Step 6: Final answer
    x = 47,351.07

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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.