Home / 74,628.73-111,957.86-21,321.17

Finding the Fourth Proportional to 74,628.73, 111,957.86 and 21,321.17

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Solution

The fourth proportional to 74,628.73, 111,957.86 and 21,321.17 is: 31,985.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,628.73 : 111,957.86 = 21,321.17 : x
  2. Step 2: Convert to fraction form
    74,628.73/111,957.86 = 21,321.17/x
  3. Step 3: Cross multiply
    74,628.73x = 111,957.86 × 21,321.17
  4. Step 4: Simplify right side
    74,628.73x = 2,387,072,164.37
  5. Step 5: Solve for x
    x = 2,387,072,164.37/74,628.73
  6. Step 6: Final answer
    x = 31,985.97

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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.