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Finding the Fourth Proportional to 78,588, 117,883.08 and 43,596

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Solution

The fourth proportional to 78,588, 117,883.08 and 43,596 is: 65,394.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,588 : 117,883.08 = 43,596 : x
  2. Step 2: Convert to fraction form
    78,588/117,883.08 = 43,596/x
  3. Step 3: Cross multiply
    78,588x = 117,883.08 × 43,596
  4. Step 4: Simplify right side
    78,588x = 5,139,230,755.68
  5. Step 5: Solve for x
    x = 5,139,230,755.68/78,588
  6. Step 6: Final answer
    x = 65,394.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.