Home / 55,699.85-76,858.70-31,828.07

Finding the Fourth Proportional to 55,699.85, 76,858.70 and 31,828.07

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Solution

The fourth proportional to 55,699.85, 76,858.70 and 31,828.07 is: 43,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,699.85 : 76,858.70 = 31,828.07 : x
  2. Step 2: Convert to fraction form
    55,699.85/76,858.70 = 31,828.07/x
  3. Step 3: Cross multiply
    55,699.85x = 76,858.70 × 31,828.07
  4. Step 4: Simplify right side
    55,699.85x = 2,446,263,540.28
  5. Step 5: Solve for x
    x = 2,446,263,540.28/55,699.85
  6. Step 6: Final answer
    x = 43,918.68

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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.