Home / 85,745.12-118,326.69-47,503.85

Finding the Fourth Proportional to 85,745.12, 118,326.69 and 47,503.85

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Solution

The fourth proportional to 85,745.12, 118,326.69 and 47,503.85 is: 65,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,745.12 : 118,326.69 = 47,503.85 : x
  2. Step 2: Convert to fraction form
    85,745.12/118,326.69 = 47,503.85/x
  3. Step 3: Cross multiply
    85,745.12x = 118,326.69 × 47,503.85
  4. Step 4: Simplify right side
    85,745.12x = 5,620,972,741.12
  5. Step 5: Solve for x
    x = 5,620,972,741.12/85,745.12
  6. Step 6: Final answer
    x = 65,554.44

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1.5x scale

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.