Home / 84,243.51-126,399.63-54,273.41

Finding the Fourth Proportional to 84,243.51, 126,399.63 and 54,273.41

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Solution

The fourth proportional to 84,243.51, 126,399.63 and 54,273.41 is: 81,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,243.51 : 126,399.63 = 54,273.41 : x
  2. Step 2: Convert to fraction form
    84,243.51/126,399.63 = 54,273.41/x
  3. Step 3: Cross multiply
    84,243.51x = 126,399.63 × 54,273.41
  4. Step 4: Simplify right side
    84,243.51x = 6,860,138,310.84
  5. Step 5: Solve for x
    x = 6,860,138,310.84/84,243.51
  6. Step 6: Final answer
    x = 81,432.25

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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.