Home / 84,043.22-115,979.64-46,317.47

Finding the Fourth Proportional to 84,043.22, 115,979.64 and 46,317.47

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Solution

The fourth proportional to 84,043.22, 115,979.64 and 46,317.47 is: 63,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,043.22 : 115,979.64 = 46,317.47 : x
  2. Step 2: Convert to fraction form
    84,043.22/115,979.64 = 46,317.47/x
  3. Step 3: Cross multiply
    84,043.22x = 115,979.64 × 46,317.47
  4. Step 4: Simplify right side
    84,043.22x = 5,371,882,742.72
  5. Step 5: Solve for x
    x = 5,371,882,742.72/84,043.22
  6. Step 6: Final answer
    x = 63,918.10

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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.