Home / 68,168.64-102,257.28-21,423.36

Finding the Fourth Proportional to 68,168.64, 102,257.28 and 21,423.36

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Solution

The fourth proportional to 68,168.64, 102,257.28 and 21,423.36 is: 32,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,168.64 : 102,257.28 = 21,423.36 : x
  2. Step 2: Convert to fraction form
    68,168.64/102,257.28 = 21,423.36/x
  3. Step 3: Cross multiply
    68,168.64x = 102,257.28 × 21,423.36
  4. Step 4: Simplify right side
    68,168.64x = 2,190,694,522.06
  5. Step 5: Solve for x
    x = 2,190,694,522.06/68,168.64
  6. Step 6: Final answer
    x = 32,136.40

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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.