Home / 66,440.20-99,638.70-22,059.40

Finding the Fourth Proportional to 66,440.20, 99,638.70 and 22,059.40

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Solution

The fourth proportional to 66,440.20, 99,638.70 and 22,059.40 is: 33,081.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440.20 : 99,638.70 = 22,059.40 : x
  2. Step 2: Convert to fraction form
    66,440.20/99,638.70 = 22,059.40/x
  3. Step 3: Cross multiply
    66,440.20x = 99,638.70 × 22,059.40
  4. Step 4: Simplify right side
    66,440.20x = 2,197,969,938.78
  5. Step 5: Solve for x
    x = 2,197,969,938.78/66,440.20
  6. Step 6: Final answer
    x = 33,081.93

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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.