Home / 86,783.48-130,169.75-27,661.58

Finding the Fourth Proportional to 86,783.48, 130,169.75 and 27,661.58

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Solution

The fourth proportional to 86,783.48, 130,169.75 and 27,661.58 is: 41,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,783.48 : 130,169.75 = 27,661.58 : x
  2. Step 2: Convert to fraction form
    86,783.48/130,169.75 = 27,661.58/x
  3. Step 3: Cross multiply
    86,783.48x = 130,169.75 × 27,661.58
  4. Step 4: Simplify right side
    86,783.48x = 3,600,700,164.05
  5. Step 5: Solve for x
    x = 3,600,700,164.05/86,783.48
  6. Step 6: Final answer
    x = 41,490.62

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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.