Home / 53,791.83-80,688.15-18,731.39

Finding the Fourth Proportional to 53,791.83, 80,688.15 and 18,731.39

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Solution

The fourth proportional to 53,791.83, 80,688.15 and 18,731.39 is: 28,097.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,791.83 : 80,688.15 = 18,731.39 : x
  2. Step 2: Convert to fraction form
    53,791.83/80,688.15 = 18,731.39/x
  3. Step 3: Cross multiply
    53,791.83x = 80,688.15 × 18,731.39
  4. Step 4: Simplify right side
    53,791.83x = 1,511,400,802.59
  5. Step 5: Solve for x
    x = 1,511,400,802.59/53,791.83
  6. Step 6: Final answer
    x = 28,097.22

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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.