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Finding the Fourth Proportional to 72,793.68, 100,452.96 and 40,964.28

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Solution

The fourth proportional to 72,793.68, 100,452.96 and 40,964.28 is: 56,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,793.68 : 100,452.96 = 40,964.28 : x
  2. Step 2: Convert to fraction form
    72,793.68/100,452.96 = 40,964.28/x
  3. Step 3: Cross multiply
    72,793.68x = 100,452.96 × 40,964.28
  4. Step 4: Simplify right side
    72,793.68x = 4,114,983,180.27
  5. Step 5: Solve for x
    x = 4,114,983,180.27/72,793.68
  6. Step 6: Final answer
    x = 56,529.40

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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.