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Finding the Fourth Proportional to 72,624.87, 100,224.90 and 40,793.09

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Solution

The fourth proportional to 72,624.87, 100,224.90 and 40,793.09 is: 56,295.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,624.87 : 100,224.90 = 40,793.09 : x
  2. Step 2: Convert to fraction form
    72,624.87/100,224.90 = 40,793.09/x
  3. Step 3: Cross multiply
    72,624.87x = 100,224.90 × 40,793.09
  4. Step 4: Simplify right side
    72,624.87x = 4,088,482,864.82
  5. Step 5: Solve for x
    x = 4,088,482,864.82/72,624.87
  6. Step 6: Final answer
    x = 56,295.91

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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.