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Finding the Fourth Proportional to 85,614.84, 118,153.74 and 47,891.64

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Solution

The fourth proportional to 85,614.84, 118,153.74 and 47,891.64 is: 66,093.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,614.84 : 118,153.74 = 47,891.64 : x
  2. Step 2: Convert to fraction form
    85,614.84/118,153.74 = 47,891.64/x
  3. Step 3: Cross multiply
    85,614.84x = 118,153.74 × 47,891.64
  4. Step 4: Simplify right side
    85,614.84x = 5,658,576,380.73
  5. Step 5: Solve for x
    x = 5,658,576,380.73/85,614.84
  6. Step 6: Final answer
    x = 66,093.41

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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.