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Finding the Fourth Proportional to 68,905.80, 103,358.70 and 29,466.90

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Solution

The fourth proportional to 68,905.80, 103,358.70 and 29,466.90 is: 44,200.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,905.80 : 103,358.70 = 29,466.90 : x
  2. Step 2: Convert to fraction form
    68,905.80/103,358.70 = 29,466.90/x
  3. Step 3: Cross multiply
    68,905.80x = 103,358.70 × 29,466.90
  4. Step 4: Simplify right side
    68,905.80x = 3,045,660,477.03
  5. Step 5: Solve for x
    x = 3,045,660,477.03/68,905.80
  6. Step 6: Final answer
    x = 44,200.35

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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.