Home / 72,818.27-100,520.19-48,958.78

Finding the Fourth Proportional to 72,818.27, 100,520.19 and 48,958.78

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Solution

The fourth proportional to 72,818.27, 100,520.19 and 48,958.78 is: 67,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,818.27 : 100,520.19 = 48,958.78 : x
  2. Step 2: Convert to fraction form
    72,818.27/100,520.19 = 48,958.78/x
  3. Step 3: Cross multiply
    72,818.27x = 100,520.19 × 48,958.78
  4. Step 4: Simplify right side
    72,818.27x = 4,921,345,120.37
  5. Step 5: Solve for x
    x = 4,921,345,120.37/72,818.27
  6. Step 6: Final answer
    x = 67,583.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.