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Finding the Fourth Proportional to 68,073.40, 102,110.10 and 65,011.60

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Solution

The fourth proportional to 68,073.40, 102,110.10 and 65,011.60 is: 97,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,073.40 : 102,110.10 = 65,011.60 : x
  2. Step 2: Convert to fraction form
    68,073.40/102,110.10 = 65,011.60/x
  3. Step 3: Cross multiply
    68,073.40x = 102,110.10 × 65,011.60
  4. Step 4: Simplify right side
    68,073.40x = 6,638,340,977.16
  5. Step 5: Solve for x
    x = 6,638,340,977.16/68,073.40
  6. Step 6: Final answer
    x = 97,517.40

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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.