Home / 61,606.11-85,029.69-38,930.70

Finding the Fourth Proportional to 61,606.11, 85,029.69 and 38,930.70

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Solution

The fourth proportional to 61,606.11, 85,029.69 and 38,930.70 is: 53,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,606.11 : 85,029.69 = 38,930.70 : x
  2. Step 2: Convert to fraction form
    61,606.11/85,029.69 = 38,930.70/x
  3. Step 3: Cross multiply
    61,606.11x = 85,029.69 × 38,930.70
  4. Step 4: Simplify right side
    61,606.11x = 3,310,265,352.48
  5. Step 5: Solve for x
    x = 3,310,265,352.48/61,606.11
  6. Step 6: Final answer
    x = 53,732.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.