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Finding the Fourth Proportional to 72,784.21, 100,446.80 and 44,106.39

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Solution

The fourth proportional to 72,784.21, 100,446.80 and 44,106.39 is: 60,869.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,784.21 : 100,446.80 = 44,106.39 : x
  2. Step 2: Convert to fraction form
    72,784.21/100,446.80 = 44,106.39/x
  3. Step 3: Cross multiply
    72,784.21x = 100,446.80 × 44,106.39
  4. Step 4: Simplify right side
    72,784.21x = 4,430,345,197.35
  5. Step 5: Solve for x
    x = 4,430,345,197.35/72,784.21
  6. Step 6: Final answer
    x = 60,869.59

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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.