Home / 66,130.94-99,201.48-18,745.24

Finding the Fourth Proportional to 66,130.94, 99,201.48 and 18,745.24

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Solution

The fourth proportional to 66,130.94, 99,201.48 and 18,745.24 is: 28,119.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,130.94 : 99,201.48 = 18,745.24 : x
  2. Step 2: Convert to fraction form
    66,130.94/99,201.48 = 18,745.24/x
  3. Step 3: Cross multiply
    66,130.94x = 99,201.48 × 18,745.24
  4. Step 4: Simplify right side
    66,130.94x = 1,859,554,961.22
  5. Step 5: Solve for x
    x = 1,859,554,961.22/66,130.94
  6. Step 6: Final answer
    x = 28,119.29

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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.