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Finding the Fourth Proportional to 64,004.40, 96,035.40 and 30,711.60

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Solution

The fourth proportional to 64,004.40, 96,035.40 and 30,711.60 is: 46,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,004.40 : 96,035.40 = 30,711.60 : x
  2. Step 2: Convert to fraction form
    64,004.40/96,035.40 = 30,711.60/x
  3. Step 3: Cross multiply
    64,004.40x = 96,035.40 × 30,711.60
  4. Step 4: Simplify right side
    64,004.40x = 2,949,400,790.64
  5. Step 5: Solve for x
    x = 2,949,400,790.64/64,004.40
  6. Step 6: Final answer
    x = 46,081.22

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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.