Home / 45,071.76-67,611.56-11,791.68

Finding the Fourth Proportional to 45,071.76, 67,611.56 and 11,791.68

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Solution

The fourth proportional to 45,071.76, 67,611.56 and 11,791.68 is: 17,688.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,071.76 : 67,611.56 = 11,791.68 : x
  2. Step 2: Convert to fraction form
    45,071.76/67,611.56 = 11,791.68/x
  3. Step 3: Cross multiply
    45,071.76x = 67,611.56 × 11,791.68
  4. Step 4: Simplify right side
    45,071.76x = 797,253,879.82
  5. Step 5: Solve for x
    x = 797,253,879.82/45,071.76
  6. Step 6: Final answer
    x = 17,688.55

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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.