Home / 86,979.33-130,453.58-39,583.39

Finding the Fourth Proportional to 86,979.33, 130,453.58 and 39,583.39

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Solution

The fourth proportional to 86,979.33, 130,453.58 and 39,583.39 is: 59,368.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,979.33 : 130,453.58 = 39,583.39 : x
  2. Step 2: Convert to fraction form
    86,979.33/130,453.58 = 39,583.39/x
  3. Step 3: Cross multiply
    86,979.33x = 130,453.58 × 39,583.39
  4. Step 4: Simplify right side
    86,979.33x = 5,163,794,736.12
  5. Step 5: Solve for x
    x = 5,163,794,736.12/86,979.33
  6. Step 6: Final answer
    x = 59,368.07

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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.