Home / 86,804.28-130,180.50-30,633.84

Finding the Fourth Proportional to 86,804.28, 130,180.50 and 30,633.84

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Solution

The fourth proportional to 86,804.28, 130,180.50 and 30,633.84 is: 45,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,804.28 : 130,180.50 = 30,633.84 : x
  2. Step 2: Convert to fraction form
    86,804.28/130,180.50 = 30,633.84/x
  3. Step 3: Cross multiply
    86,804.28x = 130,180.50 × 30,633.84
  4. Step 4: Simplify right side
    86,804.28x = 3,987,928,608.12
  5. Step 5: Solve for x
    x = 3,987,928,608.12/86,804.28
  6. Step 6: Final answer
    x = 45,941.61

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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.