Home / 86,921.06-130,426.09-41,380.30

Finding the Fourth Proportional to 86,921.06, 130,426.09 and 41,380.30

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Solution

The fourth proportional to 86,921.06, 130,426.09 and 41,380.30 is: 62,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.06 : 130,426.09 = 41,380.30 : x
  2. Step 2: Convert to fraction form
    86,921.06/130,426.09 = 41,380.30/x
  3. Step 3: Cross multiply
    86,921.06x = 130,426.09 × 41,380.30
  4. Step 4: Simplify right side
    86,921.06x = 5,397,070,972.07
  5. Step 5: Solve for x
    x = 5,397,070,972.07/86,921.06
  6. Step 6: Final answer
    x = 62,091.64

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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.