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Finding the Fourth Proportional to 64,268.40, 96,359.40 and 34,287.60

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Solution

The fourth proportional to 64,268.40, 96,359.40 and 34,287.60 is: 51,408.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,268.40 : 96,359.40 = 34,287.60 : x
  2. Step 2: Convert to fraction form
    64,268.40/96,359.40 = 34,287.60/x
  3. Step 3: Cross multiply
    64,268.40x = 96,359.40 × 34,287.60
  4. Step 4: Simplify right side
    64,268.40x = 3,303,932,563.44
  5. Step 5: Solve for x
    x = 3,303,932,563.44/64,268.40
  6. Step 6: Final answer
    x = 51,408.35

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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.