Home / 56,481.99-77,945.75-30,988.41

Finding the Fourth Proportional to 56,481.99, 77,945.75 and 30,988.41

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Solution

The fourth proportional to 56,481.99, 77,945.75 and 30,988.41 is: 42,764.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,481.99 : 77,945.75 = 30,988.41 : x
  2. Step 2: Convert to fraction form
    56,481.99/77,945.75 = 30,988.41/x
  3. Step 3: Cross multiply
    56,481.99x = 77,945.75 × 30,988.41
  4. Step 4: Simplify right side
    56,481.99x = 2,415,414,703.82
  5. Step 5: Solve for x
    x = 2,415,414,703.82/56,481.99
  6. Step 6: Final answer
    x = 42,764.33

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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.