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Finding the Fourth Proportional to 48,541, 72,768.16 and 18,951.92

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Solution

The fourth proportional to 48,541, 72,768.16 and 18,951.92 is: 28,410.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,541 : 72,768.16 = 18,951.92 : x
  2. Step 2: Convert to fraction form
    48,541/72,768.16 = 18,951.92/x
  3. Step 3: Cross multiply
    48,541x = 72,768.16 × 18,951.92
  4. Step 4: Simplify right side
    48,541x = 1,379,096,346.87
  5. Step 5: Solve for x
    x = 1,379,096,346.87/48,541
  6. Step 6: Final answer
    x = 28,410.96

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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.