Home / 74,321.65-102,563.36-40,329.27

Finding the Fourth Proportional to 74,321.65, 102,563.36 and 40,329.27

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Solution

The fourth proportional to 74,321.65, 102,563.36 and 40,329.27 is: 55,654.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,321.65 : 102,563.36 = 40,329.27 : x
  2. Step 2: Convert to fraction form
    74,321.65/102,563.36 = 40,329.27/x
  3. Step 3: Cross multiply
    74,321.65x = 102,563.36 × 40,329.27
  4. Step 4: Simplify right side
    74,321.65x = 4,136,305,428.21
  5. Step 5: Solve for x
    x = 4,136,305,428.21/74,321.65
  6. Step 6: Final answer
    x = 55,654.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.