Home / 55,342.63-76,372.48-31,469.31

Finding the Fourth Proportional to 55,342.63, 76,372.48 and 31,469.31

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Solution

The fourth proportional to 55,342.63, 76,372.48 and 31,469.31 is: 43,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,342.63 : 76,372.48 = 31,469.31 : x
  2. Step 2: Convert to fraction form
    55,342.63/76,372.48 = 31,469.31/x
  3. Step 3: Cross multiply
    55,342.63x = 76,372.48 × 31,469.31
  4. Step 4: Simplify right side
    55,342.63x = 2,403,389,248.59
  5. Step 5: Solve for x
    x = 2,403,389,248.59/55,342.63
  6. Step 6: Final answer
    x = 43,427.45

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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.