Home / 84,918.06-117,190.26-47,191.50

Finding the Fourth Proportional to 84,918.06, 117,190.26 and 47,191.50

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Solution

The fourth proportional to 84,918.06, 117,190.26 and 47,191.50 is: 65,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,918.06 : 117,190.26 = 47,191.50 : x
  2. Step 2: Convert to fraction form
    84,918.06/117,190.26 = 47,191.50/x
  3. Step 3: Cross multiply
    84,918.06x = 117,190.26 × 47,191.50
  4. Step 4: Simplify right side
    84,918.06x = 5,530,384,154.79
  5. Step 5: Solve for x
    x = 5,530,384,154.79/84,918.06
  6. Step 6: Final answer
    x = 65,126.12

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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.