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Finding the Fourth Proportional to 48,355.07, 72,514.13 and 18,769.07

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Solution

The fourth proportional to 48,355.07, 72,514.13 and 18,769.07 is: 28,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,355.07 : 72,514.13 = 18,769.07 : x
  2. Step 2: Convert to fraction form
    48,355.07/72,514.13 = 18,769.07/x
  3. Step 3: Cross multiply
    48,355.07x = 72,514.13 × 18,769.07
  4. Step 4: Simplify right side
    48,355.07x = 1,361,022,325.54
  5. Step 5: Solve for x
    x = 1,361,022,325.54/48,355.07
  6. Step 6: Final answer
    x = 28,146.43

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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.