Home / 53,814.48-80,685.27-18,735

Finding the Fourth Proportional to 53,814.48, 80,685.27 and 18,735

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Solution

The fourth proportional to 53,814.48, 80,685.27 and 18,735 is: 28,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,814.48 : 80,685.27 = 18,735 : x
  2. Step 2: Convert to fraction form
    53,814.48/80,685.27 = 18,735/x
  3. Step 3: Cross multiply
    53,814.48x = 80,685.27 × 18,735
  4. Step 4: Simplify right side
    53,814.48x = 1,511,638,533.45
  5. Step 5: Solve for x
    x = 1,511,638,533.45/53,814.48
  6. Step 6: Final answer
    x = 28,089.81

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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.