Home / 45,581.76-68,381.28-14,418.72

Finding the Fourth Proportional to 45,581.76, 68,381.28 and 14,418.72

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Solution

The fourth proportional to 45,581.76, 68,381.28 and 14,418.72 is: 21,630.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,581.76 : 68,381.28 = 14,418.72 : x
  2. Step 2: Convert to fraction form
    45,581.76/68,381.28 = 14,418.72/x
  3. Step 3: Cross multiply
    45,581.76x = 68,381.28 × 14,418.72
  4. Step 4: Simplify right side
    45,581.76x = 985,970,529.56
  5. Step 5: Solve for x
    x = 985,970,529.56/45,581.76
  6. Step 6: Final answer
    x = 21,630.81

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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.