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Finding the Fourth Proportional to 72,785.08, 100,469.46 and 44,493.40

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Solution

The fourth proportional to 72,785.08, 100,469.46 and 44,493.40 is: 61,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,785.08 : 100,469.46 = 44,493.40 : x
  2. Step 2: Convert to fraction form
    72,785.08/100,469.46 = 44,493.40/x
  3. Step 3: Cross multiply
    72,785.08x = 100,469.46 × 44,493.40
  4. Step 4: Simplify right side
    72,785.08x = 4,470,227,871.56
  5. Step 5: Solve for x
    x = 4,470,227,871.56/72,785.08
  6. Step 6: Final answer
    x = 61,416.82

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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.