Home / 85,845.15-118,464.10-47,604.09

Finding the Fourth Proportional to 85,845.15, 118,464.10 and 47,604.09

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Solution

The fourth proportional to 85,845.15, 118,464.10 and 47,604.09 is: 65,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,845.15 : 118,464.10 = 47,604.09 : x
  2. Step 2: Convert to fraction form
    85,845.15/118,464.10 = 47,604.09/x
  3. Step 3: Cross multiply
    85,845.15x = 118,464.10 × 47,604.09
  4. Step 4: Simplify right side
    85,845.15x = 5,639,375,085.85
  5. Step 5: Solve for x
    x = 5,639,375,085.85/85,845.15
  6. Step 6: Final answer
    x = 65,692.41

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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.