Home / 72,351.36-99,844.41-40,520.19

Finding the Fourth Proportional to 72,351.36, 99,844.41 and 40,520.19

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Solution

The fourth proportional to 72,351.36, 99,844.41 and 40,520.19 is: 55,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,351.36 : 99,844.41 = 40,520.19 : x
  2. Step 2: Convert to fraction form
    72,351.36/99,844.41 = 40,520.19/x
  3. Step 3: Cross multiply
    72,351.36x = 99,844.41 × 40,520.19
  4. Step 4: Simplify right side
    72,351.36x = 4,045,714,463.64
  5. Step 5: Solve for x
    x = 4,045,714,463.64/72,351.36
  6. Step 6: Final answer
    x = 55,917.60

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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.