Home / 74,197.80-111,112.02-51,906.78

Finding the Fourth Proportional to 74,197.80, 111,112.02 and 51,906.78

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Solution

The fourth proportional to 74,197.80, 111,112.02 and 51,906.78 is: 77,730.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,197.80 : 111,112.02 = 51,906.78 : x
  2. Step 2: Convert to fraction form
    74,197.80/111,112.02 = 51,906.78/x
  3. Step 3: Cross multiply
    74,197.80x = 111,112.02 × 51,906.78
  4. Step 4: Simplify right side
    74,197.80x = 5,767,467,177.50
  5. Step 5: Solve for x
    x = 5,767,467,177.50/74,197.80
  6. Step 6: Final answer
    x = 77,730.97

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1.5x scale

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.