Home / 55,266.60-76,265.56-31,393.20

Finding the Fourth Proportional to 55,266.60, 76,265.56 and 31,393.20

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Solution

The fourth proportional to 55,266.60, 76,265.56 and 31,393.20 is: 43,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,266.60 : 76,265.56 = 31,393.20 : x
  2. Step 2: Convert to fraction form
    55,266.60/76,265.56 = 31,393.20/x
  3. Step 3: Cross multiply
    55,266.60x = 76,265.56 × 31,393.20
  4. Step 4: Simplify right side
    55,266.60x = 2,394,219,978.19
  5. Step 5: Solve for x
    x = 2,394,219,978.19/55,266.60
  6. Step 6: Final answer
    x = 43,321.28

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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.