Home / 56,456.74-77,911.37-30,961.49

Finding the Fourth Proportional to 56,456.74, 77,911.37 and 30,961.49

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Solution

The fourth proportional to 56,456.74, 77,911.37 and 30,961.49 is: 42,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,456.74 : 77,911.37 = 30,961.49 : x
  2. Step 2: Convert to fraction form
    56,456.74/77,911.37 = 30,961.49/x
  3. Step 3: Cross multiply
    56,456.74x = 77,911.37 × 30,961.49
  4. Step 4: Simplify right side
    56,456.74x = 2,412,252,103.14
  5. Step 5: Solve for x
    x = 2,412,252,103.14/56,456.74
  6. Step 6: Final answer
    x = 42,727.44

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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.