Home / 86,806.24-130,219.78-30,634.75

Finding the Fourth Proportional to 86,806.24, 130,219.78 and 30,634.75

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Solution

The fourth proportional to 86,806.24, 130,219.78 and 30,634.75 is: 45,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,806.24 : 130,219.78 = 30,634.75 : x
  2. Step 2: Convert to fraction form
    86,806.24/130,219.78 = 30,634.75/x
  3. Step 3: Cross multiply
    86,806.24x = 130,219.78 × 30,634.75
  4. Step 4: Simplify right side
    86,806.24x = 3,989,250,405.36
  5. Step 5: Solve for x
    x = 3,989,250,405.36/86,806.24
  6. Step 6: Final answer
    x = 45,955.80

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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.