Home / 84,289.44-126,390.60-30,967.80

Finding the Fourth Proportional to 84,289.44, 126,390.60 and 30,967.80

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Solution

The fourth proportional to 84,289.44, 126,390.60 and 30,967.80 is: 46,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,289.44 : 126,390.60 = 30,967.80 : x
  2. Step 2: Convert to fraction form
    84,289.44/126,390.60 = 30,967.80/x
  3. Step 3: Cross multiply
    84,289.44x = 126,390.60 × 30,967.80
  4. Step 4: Simplify right side
    84,289.44x = 3,914,038,822.68
  5. Step 5: Solve for x
    x = 3,914,038,822.68/84,289.44
  6. Step 6: Final answer
    x = 46,435.70

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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.