Home / 66,891.24-100,346.58-20,147.76

Finding the Fourth Proportional to 66,891.24, 100,346.58 and 20,147.76

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Solution

The fourth proportional to 66,891.24, 100,346.58 and 20,147.76 is: 30,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,891.24 : 100,346.58 = 20,147.76 : x
  2. Step 2: Convert to fraction form
    66,891.24/100,346.58 = 20,147.76/x
  3. Step 3: Cross multiply
    66,891.24x = 100,346.58 × 20,147.76
  4. Step 4: Simplify right side
    66,891.24x = 2,021,758,810.66
  5. Step 5: Solve for x
    x = 2,021,758,810.66/66,891.24
  6. Step 6: Final answer
    x = 30,224.57

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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.