Home / 45,785.56-68,662.02-20,804.68

Finding the Fourth Proportional to 45,785.56, 68,662.02 and 20,804.68

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Solution

The fourth proportional to 45,785.56, 68,662.02 and 20,804.68 is: 31,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,785.56 : 68,662.02 = 20,804.68 : x
  2. Step 2: Convert to fraction form
    45,785.56/68,662.02 = 20,804.68/x
  3. Step 3: Cross multiply
    45,785.56x = 68,662.02 × 20,804.68
  4. Step 4: Simplify right side
    45,785.56x = 1,428,491,354.25
  5. Step 5: Solve for x
    x = 1,428,491,354.25/45,785.56
  6. Step 6: Final answer
    x = 31,199.60

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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.