Home / 86,678.37-130,005.90-27,520.02

Finding the Fourth Proportional to 86,678.37, 130,005.90 and 27,520.02

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Solution

The fourth proportional to 86,678.37, 130,005.90 and 27,520.02 is: 41,276.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,678.37 : 130,005.90 = 27,520.02 : x
  2. Step 2: Convert to fraction form
    86,678.37/130,005.90 = 27,520.02/x
  3. Step 3: Cross multiply
    86,678.37x = 130,005.90 × 27,520.02
  4. Step 4: Simplify right side
    86,678.37x = 3,577,764,968.12
  5. Step 5: Solve for x
    x = 3,577,764,968.12/86,678.37
  6. Step 6: Final answer
    x = 41,276.33

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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.