Home / 72,183.32-99,615.24-40,352.08

Finding the Fourth Proportional to 72,183.32, 99,615.24 and 40,352.08

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Solution

The fourth proportional to 72,183.32, 99,615.24 and 40,352.08 is: 55,687.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,183.32 : 99,615.24 = 40,352.08 : x
  2. Step 2: Convert to fraction form
    72,183.32/99,615.24 = 40,352.08/x
  3. Step 3: Cross multiply
    72,183.32x = 99,615.24 × 40,352.08
  4. Step 4: Simplify right side
    72,183.32x = 4,019,682,133.70
  5. Step 5: Solve for x
    x = 4,019,682,133.70/72,183.32
  6. Step 6: Final answer
    x = 55,687.13

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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.