Home / 76,279.59-114,409.62-20,123.93

Finding the Fourth Proportional to 76,279.59, 114,409.62 and 20,123.93

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Solution

The fourth proportional to 76,279.59, 114,409.62 and 20,123.93 is: 30,183.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,279.59 : 114,409.62 = 20,123.93 : x
  2. Step 2: Convert to fraction form
    76,279.59/114,409.62 = 20,123.93/x
  3. Step 3: Cross multiply
    76,279.59x = 114,409.62 × 20,123.93
  4. Step 4: Simplify right side
    76,279.59x = 2,302,370,612.16
  5. Step 5: Solve for x
    x = 2,302,370,612.16/76,279.59
  6. Step 6: Final answer
    x = 30,183.31

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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.