Home / 66,886.02-100,344.02-20,142.54

Finding the Fourth Proportional to 66,886.02, 100,344.02 and 20,142.54

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Solution

The fourth proportional to 66,886.02, 100,344.02 and 20,142.54 is: 30,218.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,886.02 : 100,344.02 = 20,142.54 : x
  2. Step 2: Convert to fraction form
    66,886.02/100,344.02 = 20,142.54/x
  3. Step 3: Cross multiply
    66,886.02x = 100,344.02 × 20,142.54
  4. Step 4: Simplify right side
    66,886.02x = 2,021,183,335.90
  5. Step 5: Solve for x
    x = 2,021,183,335.90/66,886.02
  6. Step 6: Final answer
    x = 30,218.32

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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.