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Finding the Fourth Proportional to 43,208.73, 65,042.38 and 30,814.51

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Solution

The fourth proportional to 43,208.73, 65,042.38 and 30,814.51 is: 46,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,208.73 : 65,042.38 = 30,814.51 : x
  2. Step 2: Convert to fraction form
    43,208.73/65,042.38 = 30,814.51/x
  3. Step 3: Cross multiply
    43,208.73x = 65,042.38 × 30,814.51
  4. Step 4: Simplify right side
    43,208.73x = 2,004,249,068.93
  5. Step 5: Solve for x
    x = 2,004,249,068.93/43,208.73
  6. Step 6: Final answer
    x = 46,385.28

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.