Home / 65,553.45-90,461.07-38,704.61

Finding the Fourth Proportional to 65,553.45, 90,461.07 and 38,704.61

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Solution

The fourth proportional to 65,553.45, 90,461.07 and 38,704.61 is: 53,410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,553.45 : 90,461.07 = 38,704.61 : x
  2. Step 2: Convert to fraction form
    65,553.45/90,461.07 = 38,704.61/x
  3. Step 3: Cross multiply
    65,553.45x = 90,461.07 × 38,704.61
  4. Step 4: Simplify right side
    65,553.45x = 3,501,260,660.69
  5. Step 5: Solve for x
    x = 3,501,260,660.69/65,553.45
  6. Step 6: Final answer
    x = 53,410.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.