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Finding the Fourth Proportional to 55,305.49, 82,958.30 and 13,752.49

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Solution

The fourth proportional to 55,305.49, 82,958.30 and 13,752.49 is: 20,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,305.49 : 82,958.30 = 13,752.49 : x
  2. Step 2: Convert to fraction form
    55,305.49/82,958.30 = 13,752.49/x
  3. Step 3: Cross multiply
    55,305.49x = 82,958.30 × 13,752.49
  4. Step 4: Simplify right side
    55,305.49x = 1,140,883,122.40
  5. Step 5: Solve for x
    x = 1,140,883,122.40/55,305.49
  6. Step 6: Final answer
    x = 20,628.75

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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.