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Finding the Fourth Proportional to 68,069.40, 102,104.10 and 65,007.60

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Solution

The fourth proportional to 68,069.40, 102,104.10 and 65,007.60 is: 97,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,069.40 : 102,104.10 = 65,007.60 : x
  2. Step 2: Convert to fraction form
    68,069.40/102,104.10 = 65,007.60/x
  3. Step 3: Cross multiply
    68,069.40x = 102,104.10 × 65,007.60
  4. Step 4: Simplify right side
    68,069.40x = 6,637,542,491.16
  5. Step 5: Solve for x
    x = 6,637,542,491.16/68,069.40
  6. Step 6: Final answer
    x = 97,511.40

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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.