Home / 281,031.50-421,516.26-70,669.44

Finding the Fourth Proportional to 281,031.50, 421,516.26 and 70,669.44

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Solution

The fourth proportional to 281,031.50, 421,516.26 and 70,669.44 is: 105,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,031.50 : 421,516.26 = 70,669.44 : x
  2. Step 2: Convert to fraction form
    281,031.50/421,516.26 = 70,669.44/x
  3. Step 3: Cross multiply
    281,031.50x = 421,516.26 × 70,669.44
  4. Step 4: Simplify right side
    281,031.50x = 29,788,318,045.09
  5. Step 5: Solve for x
    x = 29,788,318,045.09/281,031.50
  6. Step 6: Final answer
    x = 105,996.37

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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.