Home / 66,438.18-99,627.26-19,042.43

Finding the Fourth Proportional to 66,438.18, 99,627.26 and 19,042.43

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Solution

The fourth proportional to 66,438.18, 99,627.26 and 19,042.43 is: 28,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,438.18 : 99,627.26 = 19,042.43 : x
  2. Step 2: Convert to fraction form
    66,438.18/99,627.26 = 19,042.43/x
  3. Step 3: Cross multiply
    66,438.18x = 99,627.26 × 19,042.43
  4. Step 4: Simplify right side
    66,438.18x = 1,897,144,531.29
  5. Step 5: Solve for x
    x = 1,897,144,531.29/66,438.18
  6. Step 6: Final answer
    x = 28,555.03

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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.