Home / 67,186.02-100,775.37-20,435.25

Finding the Fourth Proportional to 67,186.02, 100,775.37 and 20,435.25

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Solution

The fourth proportional to 67,186.02, 100,775.37 and 20,435.25 is: 30,651.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,186.02 : 100,775.37 = 20,435.25 : x
  2. Step 2: Convert to fraction form
    67,186.02/100,775.37 = 20,435.25/x
  3. Step 3: Cross multiply
    67,186.02x = 100,775.37 × 20,435.25
  4. Step 4: Simplify right side
    67,186.02x = 2,059,369,879.79
  5. Step 5: Solve for x
    x = 2,059,369,879.79/67,186.02
  6. Step 6: Final answer
    x = 30,651.76

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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.