Home / 84,719.75-126,997-40,334.58

Finding the Fourth Proportional to 84,719.75, 126,997 and 40,334.58

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Solution

The fourth proportional to 84,719.75, 126,997 and 40,334.58 is: 60,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,719.75 : 126,997 = 40,334.58 : x
  2. Step 2: Convert to fraction form
    84,719.75/126,997 = 40,334.58/x
  3. Step 3: Cross multiply
    84,719.75x = 126,997 × 40,334.58
  4. Step 4: Simplify right side
    84,719.75x = 5,122,370,656.26
  5. Step 5: Solve for x
    x = 5,122,370,656.26/84,719.75
  6. Step 6: Final answer
    x = 60,462.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.