Home / 67,187.24-100,795.84-20,443.76

Finding the Fourth Proportional to 67,187.24, 100,795.84 and 20,443.76

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Solution

The fourth proportional to 67,187.24, 100,795.84 and 20,443.76 is: 30,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,187.24 : 100,795.84 = 20,443.76 : x
  2. Step 2: Convert to fraction form
    67,187.24/100,795.84 = 20,443.76/x
  3. Step 3: Cross multiply
    67,187.24x = 100,795.84 × 20,443.76
  4. Step 4: Simplify right side
    67,187.24x = 2,060,645,899.85
  5. Step 5: Solve for x
    x = 2,060,645,899.85/67,187.24
  6. Step 6: Final answer
    x = 30,670.20

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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.