Home / 72,183.94-99,615.14-40,349.42

Finding the Fourth Proportional to 72,183.94, 99,615.14 and 40,349.42

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Solution

The fourth proportional to 72,183.94, 99,615.14 and 40,349.42 is: 55,682.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,183.94 : 99,615.14 = 40,349.42 : x
  2. Step 2: Convert to fraction form
    72,183.94/99,615.14 = 40,349.42/x
  3. Step 3: Cross multiply
    72,183.94x = 99,615.14 × 40,349.42
  4. Step 4: Simplify right side
    72,183.94x = 4,019,413,122.22
  5. Step 5: Solve for x
    x = 4,019,413,122.22/72,183.94
  6. Step 6: Final answer
    x = 55,682.93

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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.