Home / 55,709.26-76,871.37-31,513.53

Finding the Fourth Proportional to 55,709.26, 76,871.37 and 31,513.53

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Solution

The fourth proportional to 55,709.26, 76,871.37 and 31,513.53 is: 43,484.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,709.26 : 76,871.37 = 31,513.53 : x
  2. Step 2: Convert to fraction form
    55,709.26/76,871.37 = 31,513.53/x
  3. Step 3: Cross multiply
    55,709.26x = 76,871.37 × 31,513.53
  4. Step 4: Simplify right side
    55,709.26x = 2,422,488,224.64
  5. Step 5: Solve for x
    x = 2,422,488,224.64/55,709.26
  6. Step 6: Final answer
    x = 43,484.48

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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.