Home / 72,226.43-99,671.89-40,395.30

Finding the Fourth Proportional to 72,226.43, 99,671.89 and 40,395.30

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Solution

The fourth proportional to 72,226.43, 99,671.89 and 40,395.30 is: 55,745.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,226.43 : 99,671.89 = 40,395.30 : x
  2. Step 2: Convert to fraction form
    72,226.43/99,671.89 = 40,395.30/x
  3. Step 3: Cross multiply
    72,226.43x = 99,671.89 × 40,395.30
  4. Step 4: Simplify right side
    72,226.43x = 4,026,275,797.13
  5. Step 5: Solve for x
    x = 4,026,275,797.13/72,226.43
  6. Step 6: Final answer
    x = 55,745.19

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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.