Home / 90,558.56-125,090.52-75,500.48

Finding the Fourth Proportional to 90,558.56, 125,090.52 and 75,500.48

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Solution

The fourth proportional to 90,558.56, 125,090.52 and 75,500.48 is: 104,290.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,558.56 : 125,090.52 = 75,500.48 : x
  2. Step 2: Convert to fraction form
    90,558.56/125,090.52 = 75,500.48/x
  3. Step 3: Cross multiply
    90,558.56x = 125,090.52 × 75,500.48
  4. Step 4: Simplify right side
    90,558.56x = 9,444,394,303.45
  5. Step 5: Solve for x
    x = 9,444,394,303.45/90,558.56
  6. Step 6: Final answer
    x = 104,290.46

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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.