Home / 66,101.25-99,153.70-19,354.13

Finding the Fourth Proportional to 66,101.25, 99,153.70 and 19,354.13

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Solution

The fourth proportional to 66,101.25, 99,153.70 and 19,354.13 is: 29,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,101.25 : 99,153.70 = 19,354.13 : x
  2. Step 2: Convert to fraction form
    66,101.25/99,153.70 = 19,354.13/x
  3. Step 3: Cross multiply
    66,101.25x = 99,153.70 × 19,354.13
  4. Step 4: Simplify right side
    66,101.25x = 1,919,033,599.78
  5. Step 5: Solve for x
    x = 1,919,033,599.78/66,101.25
  6. Step 6: Final answer
    x = 29,031.73

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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.