Home / 51,511.54-71,067.09-42,119.86

Finding the Fourth Proportional to 51,511.54, 71,067.09 and 42,119.86

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Solution

The fourth proportional to 51,511.54, 71,067.09 and 42,119.86 is: 58,110.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,511.54 : 71,067.09 = 42,119.86 : x
  2. Step 2: Convert to fraction form
    51,511.54/71,067.09 = 42,119.86/x
  3. Step 3: Cross multiply
    51,511.54x = 71,067.09 × 42,119.86
  4. Step 4: Simplify right side
    51,511.54x = 2,993,335,881.41
  5. Step 5: Solve for x
    x = 2,993,335,881.41/51,511.54
  6. Step 6: Final answer
    x = 58,110.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.