Home / 281,029.50-421,513.27-70,667.44

Finding the Fourth Proportional to 281,029.50, 421,513.27 and 70,667.44

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Solution

The fourth proportional to 281,029.50, 421,513.27 and 70,667.44 is: 105,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,029.50 : 421,513.27 = 70,667.44 : x
  2. Step 2: Convert to fraction form
    281,029.50/421,513.27 = 70,667.44/x
  3. Step 3: Cross multiply
    281,029.50x = 421,513.27 × 70,667.44
  4. Step 4: Simplify right side
    281,029.50x = 29,787,262,486.48
  5. Step 5: Solve for x
    x = 29,787,262,486.48/281,029.50
  6. Step 6: Final answer
    x = 105,993.37

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1.5x scale

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.