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Finding the Fourth Proportional to 72,594.72, 100,163.19 and 42,362.79

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Solution

The fourth proportional to 72,594.72, 100,163.19 and 42,362.79 is: 58,450.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,594.72 : 100,163.19 = 42,362.79 : x
  2. Step 2: Convert to fraction form
    72,594.72/100,163.19 = 42,362.79/x
  3. Step 3: Cross multiply
    72,594.72x = 100,163.19 × 42,362.79
  4. Step 4: Simplify right side
    72,594.72x = 4,243,192,183.70
  5. Step 5: Solve for x
    x = 4,243,192,183.70/72,594.72
  6. Step 6: Final answer
    x = 58,450.42

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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.