Home / 67,778.50-101,644.35-27,786.13

Finding the Fourth Proportional to 67,778.50, 101,644.35 and 27,786.13

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Solution

The fourth proportional to 67,778.50, 101,644.35 and 27,786.13 is: 41,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,778.50 : 101,644.35 = 27,786.13 : x
  2. Step 2: Convert to fraction form
    67,778.50/101,644.35 = 27,786.13/x
  3. Step 3: Cross multiply
    67,778.50x = 101,644.35 × 27,786.13
  4. Step 4: Simplify right side
    67,778.50x = 2,824,303,501.35
  5. Step 5: Solve for x
    x = 2,824,303,501.35/67,778.50
  6. Step 6: Final answer
    x = 41,669.60

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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.