Home / 272,552.31-408,845.79-85,571.19

Finding the Fourth Proportional to 272,552.31, 408,845.79 and 85,571.19

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Solution

The fourth proportional to 272,552.31, 408,845.79 and 85,571.19 is: 128,362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,552.31 : 408,845.79 = 85,571.19 : x
  2. Step 2: Convert to fraction form
    272,552.31/408,845.79 = 85,571.19/x
  3. Step 3: Cross multiply
    272,552.31x = 408,845.79 × 85,571.19
  4. Step 4: Simplify right side
    272,552.31x = 34,985,420,776.79
  5. Step 5: Solve for x
    x = 34,985,420,776.79/272,552.31
  6. Step 6: Final answer
    x = 128,362.22

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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.