Home / 86,921.06-130,348.78-40,141.13

Finding the Fourth Proportional to 86,921.06, 130,348.78 and 40,141.13

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Solution

The fourth proportional to 86,921.06, 130,348.78 and 40,141.13 is: 60,196.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.06 : 130,348.78 = 40,141.13 : x
  2. Step 2: Convert to fraction form
    86,921.06/130,348.78 = 40,141.13/x
  3. Step 3: Cross multiply
    86,921.06x = 130,348.78 × 40,141.13
  4. Step 4: Simplify right side
    86,921.06x = 5,232,346,571.22
  5. Step 5: Solve for x
    x = 5,232,346,571.22/86,921.06
  6. Step 6: Final answer
    x = 60,196.54

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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.