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Finding the Fourth Proportional to 55,383.44, 83,075.34 and 13,830.44

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Solution

The fourth proportional to 55,383.44, 83,075.34 and 13,830.44 is: 20,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,383.44 : 83,075.34 = 13,830.44 : x
  2. Step 2: Convert to fraction form
    55,383.44/83,075.34 = 13,830.44/x
  3. Step 3: Cross multiply
    55,383.44x = 83,075.34 × 13,830.44
  4. Step 4: Simplify right side
    55,383.44x = 1,148,968,505.35
  5. Step 5: Solve for x
    x = 1,148,968,505.35/55,383.44
  6. Step 6: Final answer
    x = 20,745.70

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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.