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Finding the Fourth Proportional to 85,010.98, 117,310.45 and 47,282.80

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Solution

The fourth proportional to 85,010.98, 117,310.45 and 47,282.80 is: 65,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,010.98 : 117,310.45 = 47,282.80 : x
  2. Step 2: Convert to fraction form
    85,010.98/117,310.45 = 47,282.80/x
  3. Step 3: Cross multiply
    85,010.98x = 117,310.45 × 47,282.80
  4. Step 4: Simplify right side
    85,010.98x = 5,546,765,722.29
  5. Step 5: Solve for x
    x = 5,546,765,722.29/85,010.98
  6. Step 6: Final answer
    x = 65,247.64

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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.