Home / 45,556.16-68,329.16-12,279.54

Finding the Fourth Proportional to 45,556.16, 68,329.16 and 12,279.54

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Solution

The fourth proportional to 45,556.16, 68,329.16 and 12,279.54 is: 18,417.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,556.16 : 68,329.16 = 12,279.54 : x
  2. Step 2: Convert to fraction form
    45,556.16/68,329.16 = 12,279.54/x
  3. Step 3: Cross multiply
    45,556.16x = 68,329.16 × 12,279.54
  4. Step 4: Simplify right side
    45,556.16x = 839,050,653.39
  5. Step 5: Solve for x
    x = 839,050,653.39/45,556.16
  6. Step 6: Final answer
    x = 18,417.94

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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.