Home / 85,519.40-118,027.04-49,709.42

Finding the Fourth Proportional to 85,519.40, 118,027.04 and 49,709.42

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Solution

The fourth proportional to 85,519.40, 118,027.04 and 49,709.42 is: 68,604.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,519.40 : 118,027.04 = 49,709.42 : x
  2. Step 2: Convert to fraction form
    85,519.40/118,027.04 = 49,709.42/x
  3. Step 3: Cross multiply
    85,519.40x = 118,027.04 × 49,709.42
  4. Step 4: Simplify right side
    85,519.40x = 5,867,055,702.72
  5. Step 5: Solve for x
    x = 5,867,055,702.72/85,519.40
  6. Step 6: Final answer
    x = 68,604.97

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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.