Home / 62,986.48-86,918.06-39,112.64

Finding the Fourth Proportional to 62,986.48, 86,918.06 and 39,112.64

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Solution

The fourth proportional to 62,986.48, 86,918.06 and 39,112.64 is: 53,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,986.48 : 86,918.06 = 39,112.64 : x
  2. Step 2: Convert to fraction form
    62,986.48/86,918.06 = 39,112.64/x
  3. Step 3: Cross multiply
    62,986.48x = 86,918.06 × 39,112.64
  4. Step 4: Simplify right side
    62,986.48x = 3,399,594,160.12
  5. Step 5: Solve for x
    x = 3,399,594,160.12/62,986.48
  6. Step 6: Final answer
    x = 53,973.40

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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.