Home / 66,201.70-99,302.55-38,208.10

Finding the Fourth Proportional to 66,201.70, 99,302.55 and 38,208.10

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Solution

The fourth proportional to 66,201.70, 99,302.55 and 38,208.10 is: 57,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,201.70 : 99,302.55 = 38,208.10 : x
  2. Step 2: Convert to fraction form
    66,201.70/99,302.55 = 38,208.10/x
  3. Step 3: Cross multiply
    66,201.70x = 99,302.55 × 38,208.10
  4. Step 4: Simplify right side
    66,201.70x = 3,794,161,760.66
  5. Step 5: Solve for x
    x = 3,794,161,760.66/66,201.70
  6. Step 6: Final answer
    x = 57,312.15

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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.