Home / 85,317.21-117,736.95-47,077.11

Finding the Fourth Proportional to 85,317.21, 117,736.95 and 47,077.11

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Solution

The fourth proportional to 85,317.21, 117,736.95 and 47,077.11 is: 64,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,317.21 : 117,736.95 = 47,077.11 : x
  2. Step 2: Convert to fraction form
    85,317.21/117,736.95 = 47,077.11/x
  3. Step 3: Cross multiply
    85,317.21x = 117,736.95 × 47,077.11
  4. Step 4: Simplify right side
    85,317.21x = 5,542,715,346.21
  5. Step 5: Solve for x
    x = 5,542,715,346.21/85,317.21
  6. Step 6: Final answer
    x = 64,965.97

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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.