Home / 81,217.36-112,090.24-45,409.48

Finding the Fourth Proportional to 81,217.36, 112,090.24 and 45,409.48

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Solution

The fourth proportional to 81,217.36, 112,090.24 and 45,409.48 is: 62,670.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,217.36 : 112,090.24 = 45,409.48 : x
  2. Step 2: Convert to fraction form
    81,217.36/112,090.24 = 45,409.48/x
  3. Step 3: Cross multiply
    81,217.36x = 112,090.24 × 45,409.48
  4. Step 4: Simplify right side
    81,217.36x = 5,089,959,511.48
  5. Step 5: Solve for x
    x = 5,089,959,511.48/81,217.36
  6. Step 6: Final answer
    x = 62,670.83

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1.5x scale

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.