Home / 52,111.44-78,166.96-12,668.56

Finding the Fourth Proportional to 52,111.44, 78,166.96 and 12,668.56

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Solution

The fourth proportional to 52,111.44, 78,166.96 and 12,668.56 is: 19,002.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,111.44 : 78,166.96 = 12,668.56 : x
  2. Step 2: Convert to fraction form
    52,111.44/78,166.96 = 12,668.56/x
  3. Step 3: Cross multiply
    52,111.44x = 78,166.96 × 12,668.56
  4. Step 4: Simplify right side
    52,111.44x = 990,262,822.78
  5. Step 5: Solve for x
    x = 990,262,822.78/52,111.44
  6. Step 6: Final answer
    x = 19,002.79

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1.5x scale

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.