Home / 34,120.80-51,189.12-10,745.28

Finding the Fourth Proportional to 34,120.80, 51,189.12 and 10,745.28

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Solution

The fourth proportional to 34,120.80, 51,189.12 and 10,745.28 is: 16,120.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,120.80 : 51,189.12 = 10,745.28 : x
  2. Step 2: Convert to fraction form
    34,120.80/51,189.12 = 10,745.28/x
  3. Step 3: Cross multiply
    34,120.80x = 51,189.12 × 10,745.28
  4. Step 4: Simplify right side
    34,120.80x = 550,041,427.35
  5. Step 5: Solve for x
    x = 550,041,427.35/34,120.80
  6. Step 6: Final answer
    x = 16,120.41

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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.