Home / 84,115.12-116,087.04-62,857.60

Finding the Fourth Proportional to 84,115.12, 116,087.04 and 62,857.60

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Solution

The fourth proportional to 84,115.12, 116,087.04 and 62,857.60 is: 86,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,115.12 : 116,087.04 = 62,857.60 : x
  2. Step 2: Convert to fraction form
    84,115.12/116,087.04 = 62,857.60/x
  3. Step 3: Cross multiply
    84,115.12x = 116,087.04 × 62,857.60
  4. Step 4: Simplify right side
    84,115.12x = 7,296,952,725.50
  5. Step 5: Solve for x
    x = 7,296,952,725.50/84,115.12
  6. Step 6: Final answer
    x = 86,749.60

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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.