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Finding the Fourth Proportional to 85,560.88, 118,072.97 and 47,319.73

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Solution

The fourth proportional to 85,560.88, 118,072.97 and 47,319.73 is: 65,300.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,560.88 : 118,072.97 = 47,319.73 : x
  2. Step 2: Convert to fraction form
    85,560.88/118,072.97 = 47,319.73/x
  3. Step 3: Cross multiply
    85,560.88x = 118,072.97 × 47,319.73
  4. Step 4: Simplify right side
    85,560.88x = 5,587,181,060.70
  5. Step 5: Solve for x
    x = 5,587,181,060.70/85,560.88
  6. Step 6: Final answer
    x = 65,300.65

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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.