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Finding the Fourth Proportional to 55,533, 76,635.60 and 30,383.04

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Solution

The fourth proportional to 55,533, 76,635.60 and 30,383.04 is: 41,928.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,533 : 76,635.60 = 30,383.04 : x
  2. Step 2: Convert to fraction form
    55,533/76,635.60 = 30,383.04/x
  3. Step 3: Cross multiply
    55,533x = 76,635.60 × 30,383.04
  4. Step 4: Simplify right side
    55,533x = 2,328,422,500.22
  5. Step 5: Solve for x
    x = 2,328,422,500.22/55,533
  6. Step 6: Final answer
    x = 41,928.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.