Home / 74,571.02-102,905.91-40,578.71

Finding the Fourth Proportional to 74,571.02, 102,905.91 and 40,578.71

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Solution

The fourth proportional to 74,571.02, 102,905.91 and 40,578.71 is: 55,997.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,571.02 : 102,905.91 = 40,578.71 : x
  2. Step 2: Convert to fraction form
    74,571.02/102,905.91 = 40,578.71/x
  3. Step 3: Cross multiply
    74,571.02x = 102,905.91 × 40,578.71
  4. Step 4: Simplify right side
    74,571.02x = 4,175,788,564.65
  5. Step 5: Solve for x
    x = 4,175,788,564.65/74,571.02
  6. Step 6: Final answer
    x = 55,997.48

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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.