Home / 83,409.16-115,112.91-47,604.59

Finding the Fourth Proportional to 83,409.16, 115,112.91 and 47,604.59

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Solution

The fourth proportional to 83,409.16, 115,112.91 and 47,604.59 is: 65,699.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,409.16 : 115,112.91 = 47,604.59 : x
  2. Step 2: Convert to fraction form
    83,409.16/115,112.91 = 47,604.59/x
  3. Step 3: Cross multiply
    83,409.16x = 115,112.91 × 47,604.59
  4. Step 4: Simplify right side
    83,409.16x = 5,479,902,884.26
  5. Step 5: Solve for x
    x = 5,479,902,884.26/83,409.16
  6. Step 6: Final answer
    x = 65,699.06

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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.