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Finding the Fourth Proportional to 40,362.45, 60,552.90 and 20,321.93

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Solution

The fourth proportional to 40,362.45, 60,552.90 and 20,321.93 is: 30,487.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,362.45 : 60,552.90 = 20,321.93 : x
  2. Step 2: Convert to fraction form
    40,362.45/60,552.90 = 20,321.93/x
  3. Step 3: Cross multiply
    40,362.45x = 60,552.90 × 20,321.93
  4. Step 4: Simplify right side
    40,362.45x = 1,230,551,798.04
  5. Step 5: Solve for x
    x = 1,230,551,798.04/40,362.45
  6. Step 6: Final answer
    x = 30,487.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.