Home / 72,230.24-99,664.44-40,399.40

Finding the Fourth Proportional to 72,230.24, 99,664.44 and 40,399.40

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Solution

The fourth proportional to 72,230.24, 99,664.44 and 40,399.40 is: 55,743.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,230.24 : 99,664.44 = 40,399.40 : x
  2. Step 2: Convert to fraction form
    72,230.24/99,664.44 = 40,399.40/x
  3. Step 3: Cross multiply
    72,230.24x = 99,664.44 × 40,399.40
  4. Step 4: Simplify right side
    72,230.24x = 4,026,383,577.34
  5. Step 5: Solve for x
    x = 4,026,383,577.34/72,230.24
  6. Step 6: Final answer
    x = 55,743.74

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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.