Home / 72,099.22-99,497.14-40,269.32

Finding the Fourth Proportional to 72,099.22, 99,497.14 and 40,269.32

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Solution

The fourth proportional to 72,099.22, 99,497.14 and 40,269.32 is: 55,571.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,099.22 : 99,497.14 = 40,269.32 : x
  2. Step 2: Convert to fraction form
    72,099.22/99,497.14 = 40,269.32/x
  3. Step 3: Cross multiply
    72,099.22x = 99,497.14 × 40,269.32
  4. Step 4: Simplify right side
    72,099.22x = 4,006,682,169.74
  5. Step 5: Solve for x
    x = 4,006,682,169.74/72,099.22
  6. Step 6: Final answer
    x = 55,571.78

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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.