Home / 84,881.34-117,137.61-49,074.48

Finding the Fourth Proportional to 84,881.34, 117,137.61 and 49,074.48

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Solution

The fourth proportional to 84,881.34, 117,137.61 and 49,074.48 is: 67,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,881.34 : 117,137.61 = 49,074.48 : x
  2. Step 2: Convert to fraction form
    84,881.34/117,137.61 = 49,074.48/x
  3. Step 3: Cross multiply
    84,881.34x = 117,137.61 × 49,074.48
  4. Step 4: Simplify right side
    84,881.34x = 5,748,467,299.19
  5. Step 5: Solve for x
    x = 5,748,467,299.19/84,881.34
  6. Step 6: Final answer
    x = 67,723.57

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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.