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Finding the Fourth Proportional to 72,454.49, 108,496.14 and 42,893.54

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Solution

The fourth proportional to 72,454.49, 108,496.14 and 42,893.54 is: 64,230.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,454.49 : 108,496.14 = 42,893.54 : x
  2. Step 2: Convert to fraction form
    72,454.49/108,496.14 = 42,893.54/x
  3. Step 3: Cross multiply
    72,454.49x = 108,496.14 × 42,893.54
  4. Step 4: Simplify right side
    72,454.49x = 4,653,783,520.94
  5. Step 5: Solve for x
    x = 4,653,783,520.94/72,454.49
  6. Step 6: Final answer
    x = 64,230.44

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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.