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Finding the Fourth Proportional to 67,664.60, 101,503.30 and 18,416.60

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Solution

The fourth proportional to 67,664.60, 101,503.30 and 18,416.60 is: 27,626.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,664.60 : 101,503.30 = 18,416.60 : x
  2. Step 2: Convert to fraction form
    67,664.60/101,503.30 = 18,416.60/x
  3. Step 3: Cross multiply
    67,664.60x = 101,503.30 × 18,416.60
  4. Step 4: Simplify right side
    67,664.60x = 1,869,345,674.78
  5. Step 5: Solve for x
    x = 1,869,345,674.78/67,664.60
  6. Step 6: Final answer
    x = 27,626.64

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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.