Home / 85,961.72-118,625.40-47,719.04

Finding the Fourth Proportional to 85,961.72, 118,625.40 and 47,719.04

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Solution

The fourth proportional to 85,961.72, 118,625.40 and 47,719.04 is: 65,851.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,961.72 : 118,625.40 = 47,719.04 : x
  2. Step 2: Convert to fraction form
    85,961.72/118,625.40 = 47,719.04/x
  3. Step 3: Cross multiply
    85,961.72x = 118,625.40 × 47,719.04
  4. Step 4: Simplify right side
    85,961.72x = 5,660,690,207.62
  5. Step 5: Solve for x
    x = 5,660,690,207.62/85,961.72
  6. Step 6: Final answer
    x = 65,851.29

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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.