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Finding the Fourth Proportional to 55,252.60, 82,878.90 and 13,699.60

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Solution

The fourth proportional to 55,252.60, 82,878.90 and 13,699.60 is: 20,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,252.60 : 82,878.90 = 13,699.60 : x
  2. Step 2: Convert to fraction form
    55,252.60/82,878.90 = 13,699.60/x
  3. Step 3: Cross multiply
    55,252.60x = 82,878.90 × 13,699.60
  4. Step 4: Simplify right side
    55,252.60x = 1,135,407,778.44
  5. Step 5: Solve for x
    x = 1,135,407,778.44/55,252.60
  6. Step 6: Final answer
    x = 20,549.40

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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.