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Finding the Fourth Proportional to 68,423.20, 102,634.80 and 58,400.80

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Solution

The fourth proportional to 68,423.20, 102,634.80 and 58,400.80 is: 87,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,423.20 : 102,634.80 = 58,400.80 : x
  2. Step 2: Convert to fraction form
    68,423.20/102,634.80 = 58,400.80/x
  3. Step 3: Cross multiply
    68,423.20x = 102,634.80 × 58,400.80
  4. Step 4: Simplify right side
    68,423.20x = 5,993,954,427.84
  5. Step 5: Solve for x
    x = 5,993,954,427.84/68,423.20
  6. Step 6: Final answer
    x = 87,601.20

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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.