Home / 72,185.24-108,249.18-27,787.40

Finding the Fourth Proportional to 72,185.24, 108,249.18 and 27,787.40

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Solution

The fourth proportional to 72,185.24, 108,249.18 and 27,787.40 is: 41,670.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,185.24 : 108,249.18 = 27,787.40 : x
  2. Step 2: Convert to fraction form
    72,185.24/108,249.18 = 27,787.40/x
  3. Step 3: Cross multiply
    72,185.24x = 108,249.18 × 27,787.40
  4. Step 4: Simplify right side
    72,185.24x = 3,007,963,264.33
  5. Step 5: Solve for x
    x = 3,007,963,264.33/72,185.24
  6. Step 6: Final answer
    x = 41,670.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.