Home / 85,899.36-118,540.89-48,174.42

Finding the Fourth Proportional to 85,899.36, 118,540.89 and 48,174.42

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Solution

The fourth proportional to 85,899.36, 118,540.89 and 48,174.42 is: 66,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,899.36 : 118,540.89 = 48,174.42 : x
  2. Step 2: Convert to fraction form
    85,899.36/118,540.89 = 48,174.42/x
  3. Step 3: Cross multiply
    85,899.36x = 118,540.89 × 48,174.42
  4. Step 4: Simplify right side
    85,899.36x = 5,710,638,622.03
  5. Step 5: Solve for x
    x = 5,710,638,622.03/85,899.36
  6. Step 6: Final answer
    x = 66,480.57

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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.