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Finding the Fourth Proportional to 66,861.66, 100,291.68 and 16,260.96

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Solution

The fourth proportional to 66,861.66, 100,291.68 and 16,260.96 is: 24,391.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,861.66 : 100,291.68 = 16,260.96 : x
  2. Step 2: Convert to fraction form
    66,861.66/100,291.68 = 16,260.96/x
  3. Step 3: Cross multiply
    66,861.66x = 100,291.68 × 16,260.96
  4. Step 4: Simplify right side
    66,861.66x = 1,630,838,996.81
  5. Step 5: Solve for x
    x = 1,630,838,996.81/66,861.66
  6. Step 6: Final answer
    x = 24,391.24

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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.