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Finding the Fourth Proportional to 85,524.75, 118,027.80 and 47,799

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Solution

The fourth proportional to 85,524.75, 118,027.80 and 47,799 is: 65,964.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,524.75 : 118,027.80 = 47,799 : x
  2. Step 2: Convert to fraction form
    85,524.75/118,027.80 = 47,799/x
  3. Step 3: Cross multiply
    85,524.75x = 118,027.80 × 47,799
  4. Step 4: Simplify right side
    85,524.75x = 5,641,610,812.20
  5. Step 5: Solve for x
    x = 5,641,610,812.20/85,524.75
  6. Step 6: Final answer
    x = 65,964.66

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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.