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Finding the Fourth Proportional to 68,904.80, 103,366.80 and 29,461.60

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Solution

The fourth proportional to 68,904.80, 103,366.80 and 29,461.60 is: 44,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,904.80 : 103,366.80 = 29,461.60 : x
  2. Step 2: Convert to fraction form
    68,904.80/103,366.80 = 29,461.60/x
  3. Step 3: Cross multiply
    68,904.80x = 103,366.80 × 29,461.60
  4. Step 4: Simplify right side
    68,904.80x = 3,045,351,314.88
  5. Step 5: Solve for x
    x = 3,045,351,314.88/68,904.80
  6. Step 6: Final answer
    x = 44,196.50

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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.