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Finding the Fourth Proportional to 72,555.61, 108,843.81 and 22,640.17

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Solution

The fourth proportional to 72,555.61, 108,843.81 and 22,640.17 is: 33,963.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,555.61 : 108,843.81 = 22,640.17 : x
  2. Step 2: Convert to fraction form
    72,555.61/108,843.81 = 22,640.17/x
  3. Step 3: Cross multiply
    72,555.61x = 108,843.81 × 22,640.17
  4. Step 4: Simplify right side
    72,555.61x = 2,464,242,361.85
  5. Step 5: Solve for x
    x = 2,464,242,361.85/72,555.61
  6. Step 6: Final answer
    x = 33,963.50

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1.5x scale

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.