Home / 74,386.87-111,580.31-21,796.36

Finding the Fourth Proportional to 74,386.87, 111,580.31 and 21,796.36

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Solution

The fourth proportional to 74,386.87, 111,580.31 and 21,796.36 is: 32,694.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,386.87 : 111,580.31 = 21,796.36 : x
  2. Step 2: Convert to fraction form
    74,386.87/111,580.31 = 21,796.36/x
  3. Step 3: Cross multiply
    74,386.87x = 111,580.31 × 21,796.36
  4. Step 4: Simplify right side
    74,386.87x = 2,432,044,605.67
  5. Step 5: Solve for x
    x = 2,432,044,605.67/74,386.87
  6. Step 6: Final answer
    x = 32,694.54

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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.