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Finding the Fourth Proportional to 85,353.64, 117,773.94 and 47,627.80

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Solution

The fourth proportional to 85,353.64, 117,773.94 and 47,627.80 is: 65,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,353.64 : 117,773.94 = 47,627.80 : x
  2. Step 2: Convert to fraction form
    85,353.64/117,773.94 = 47,627.80/x
  3. Step 3: Cross multiply
    85,353.64x = 117,773.94 × 47,627.80
  4. Step 4: Simplify right side
    85,353.64x = 5,609,313,659.53
  5. Step 5: Solve for x
    x = 5,609,313,659.53/85,353.64
  6. Step 6: Final answer
    x = 65,718.51

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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.