Home / 81,292.42-121,950.26-25,136.88

Finding the Fourth Proportional to 81,292.42, 121,950.26 and 25,136.88

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Solution

The fourth proportional to 81,292.42, 121,950.26 and 25,136.88 is: 37,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,292.42 : 121,950.26 = 25,136.88 : x
  2. Step 2: Convert to fraction form
    81,292.42/121,950.26 = 25,136.88/x
  3. Step 3: Cross multiply
    81,292.42x = 121,950.26 × 25,136.88
  4. Step 4: Simplify right side
    81,292.42x = 3,065,449,051.59
  5. Step 5: Solve for x
    x = 3,065,449,051.59/81,292.42
  6. Step 6: Final answer
    x = 37,708.92

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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.