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Finding the Fourth Proportional to 84,846.80, 127,097.40 and 43,317.20

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Solution

The fourth proportional to 84,846.80, 127,097.40 and 43,317.20 is: 64,887.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,846.80 : 127,097.40 = 43,317.20 : x
  2. Step 2: Convert to fraction form
    84,846.80/127,097.40 = 43,317.20/x
  3. Step 3: Cross multiply
    84,846.80x = 127,097.40 × 43,317.20
  4. Step 4: Simplify right side
    84,846.80x = 5,505,503,495.28
  5. Step 5: Solve for x
    x = 5,505,503,495.28/84,846.80
  6. Step 6: Final answer
    x = 64,887.58

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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.