Home / 86,036.26-118,829.39-57,308.60

Finding the Fourth Proportional to 86,036.26, 118,829.39 and 57,308.60

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Solution

The fourth proportional to 86,036.26, 118,829.39 and 57,308.60 is: 79,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,036.26 : 118,829.39 = 57,308.60 : x
  2. Step 2: Convert to fraction form
    86,036.26/118,829.39 = 57,308.60/x
  3. Step 3: Cross multiply
    86,036.26x = 118,829.39 × 57,308.60
  4. Step 4: Simplify right side
    86,036.26x = 6,809,945,979.75
  5. Step 5: Solve for x
    x = 6,809,945,979.75/86,036.26
  6. Step 6: Final answer
    x = 79,152.05

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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.