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Finding the Fourth Proportional to 85,899.61, 118,537.44 and 47,658.75

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Solution

The fourth proportional to 85,899.61, 118,537.44 and 47,658.75 is: 65,766.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,899.61 : 118,537.44 = 47,658.75 : x
  2. Step 2: Convert to fraction form
    85,899.61/118,537.44 = 47,658.75/x
  3. Step 3: Cross multiply
    85,899.61x = 118,537.44 × 47,658.75
  4. Step 4: Simplify right side
    85,899.61x = 5,649,346,218.60
  5. Step 5: Solve for x
    x = 5,649,346,218.60/85,899.61
  6. Step 6: Final answer
    x = 65,766.84

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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.