Home / 86,979.62-130,477.40-27,008.44

Finding the Fourth Proportional to 86,979.62, 130,477.40 and 27,008.44

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Solution

The fourth proportional to 86,979.62, 130,477.40 and 27,008.44 is: 40,515.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,979.62 : 130,477.40 = 27,008.44 : x
  2. Step 2: Convert to fraction form
    86,979.62/130,477.40 = 27,008.44/x
  3. Step 3: Cross multiply
    86,979.62x = 130,477.40 × 27,008.44
  4. Step 4: Simplify right side
    86,979.62x = 3,523,990,669.30
  5. Step 5: Solve for x
    x = 3,523,990,669.30/86,979.62
  6. Step 6: Final answer
    x = 40,515.13

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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.