Home / 281,271.82-421,933.37-91,683.52

Finding the Fourth Proportional to 281,271.82, 421,933.37 and 91,683.52

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Solution

The fourth proportional to 281,271.82, 421,933.37 and 91,683.52 is: 137,533.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,271.82 : 421,933.37 = 91,683.52 : x
  2. Step 2: Convert to fraction form
    281,271.82/421,933.37 = 91,683.52/x
  3. Step 3: Cross multiply
    281,271.82x = 421,933.37 × 91,683.52
  4. Step 4: Simplify right side
    281,271.82x = 38,684,337,756.09
  5. Step 5: Solve for x
    x = 38,684,337,756.09/281,271.82
  6. Step 6: Final answer
    x = 137,533.64

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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.