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Finding the Fourth Proportional to 64,168.56, 96,172.65 and 30,879.69

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Solution

The fourth proportional to 64,168.56, 96,172.65 and 30,879.69 is: 46,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,168.56 : 96,172.65 = 30,879.69 : x
  2. Step 2: Convert to fraction form
    64,168.56/96,172.65 = 30,879.69/x
  3. Step 3: Cross multiply
    64,168.56x = 96,172.65 × 30,879.69
  4. Step 4: Simplify right side
    64,168.56x = 2,969,781,618.48
  5. Step 5: Solve for x
    x = 2,969,781,618.48/64,168.56
  6. Step 6: Final answer
    x = 46,280.95

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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.