Home / 71,328.41-107,010.38-21,409.43

Finding the Fourth Proportional to 71,328.41, 107,010.38 and 21,409.43

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Solution

The fourth proportional to 71,328.41, 107,010.38 and 21,409.43 is: 32,119.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,328.41 : 107,010.38 = 21,409.43 : x
  2. Step 2: Convert to fraction form
    71,328.41/107,010.38 = 21,409.43/x
  3. Step 3: Cross multiply
    71,328.41x = 107,010.38 × 21,409.43
  4. Step 4: Simplify right side
    71,328.41x = 2,291,030,597.78
  5. Step 5: Solve for x
    x = 2,291,030,597.78/71,328.41
  6. Step 6: Final answer
    x = 32,119.47

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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.