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Finding the Fourth Proportional to 86,103.03, 118,823.60 and 47,342.49

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Solution

The fourth proportional to 86,103.03, 118,823.60 and 47,342.49 is: 65,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,103.03 : 118,823.60 = 47,342.49 : x
  2. Step 2: Convert to fraction form
    86,103.03/118,823.60 = 47,342.49/x
  3. Step 3: Cross multiply
    86,103.03x = 118,823.60 × 47,342.49
  4. Step 4: Simplify right side
    86,103.03x = 5,625,404,858.05
  5. Step 5: Solve for x
    x = 5,625,404,858.05/86,103.03
  6. Step 6: Final answer
    x = 65,333.41

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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.