Home / 53,865.48-80,761.77-18,786

Finding the Fourth Proportional to 53,865.48, 80,761.77 and 18,786

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Solution

The fourth proportional to 53,865.48, 80,761.77 and 18,786 is: 28,166.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,865.48 : 80,761.77 = 18,786 : x
  2. Step 2: Convert to fraction form
    53,865.48/80,761.77 = 18,786/x
  3. Step 3: Cross multiply
    53,865.48x = 80,761.77 × 18,786
  4. Step 4: Simplify right side
    53,865.48x = 1,517,190,611.22
  5. Step 5: Solve for x
    x = 1,517,190,611.22/53,865.48
  6. Step 6: Final answer
    x = 28,166.29

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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.