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Finding the Fourth Proportional to 68,963.30, 103,435.35 and 22,220.90

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Solution

The fourth proportional to 68,963.30, 103,435.35 and 22,220.90 is: 33,328.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,963.30 : 103,435.35 = 22,220.90 : x
  2. Step 2: Convert to fraction form
    68,963.30/103,435.35 = 22,220.90/x
  3. Step 3: Cross multiply
    68,963.30x = 103,435.35 × 22,220.90
  4. Step 4: Simplify right side
    68,963.30x = 2,298,426,568.82
  5. Step 5: Solve for x
    x = 2,298,426,568.82/68,963.30
  6. Step 6: Final answer
    x = 33,328.26

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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.