Home / 85,858.53-118,529.28-66,695.37

Finding the Fourth Proportional to 85,858.53, 118,529.28 and 66,695.37

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Solution

The fourth proportional to 85,858.53, 118,529.28 and 66,695.37 is: 92,074.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,858.53 : 118,529.28 = 66,695.37 : x
  2. Step 2: Convert to fraction form
    85,858.53/118,529.28 = 66,695.37/x
  3. Step 3: Cross multiply
    85,858.53x = 118,529.28 × 66,695.37
  4. Step 4: Simplify right side
    85,858.53x = 7,905,354,185.43
  5. Step 5: Solve for x
    x = 7,905,354,185.43/85,858.53
  6. Step 6: Final answer
    x = 92,074.19

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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.