Home / 72,025.10-99,399.66-40,194.54

Finding the Fourth Proportional to 72,025.10, 99,399.66 and 40,194.54

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Solution

The fourth proportional to 72,025.10, 99,399.66 and 40,194.54 is: 55,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,025.10 : 99,399.66 = 40,194.54 : x
  2. Step 2: Convert to fraction form
    72,025.10/99,399.66 = 40,194.54/x
  3. Step 3: Cross multiply
    72,025.10x = 99,399.66 × 40,194.54
  4. Step 4: Simplify right side
    72,025.10x = 3,995,323,609.86
  5. Step 5: Solve for x
    x = 3,995,323,609.86/72,025.10
  6. Step 6: Final answer
    x = 55,471.27

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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.