Home / 68,812.54-94,961.36-40,151.90

Finding the Fourth Proportional to 68,812.54, 94,961.36 and 40,151.90

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Solution

The fourth proportional to 68,812.54, 94,961.36 and 40,151.90 is: 55,409.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,812.54 : 94,961.36 = 40,151.90 : x
  2. Step 2: Convert to fraction form
    68,812.54/94,961.36 = 40,151.90/x
  3. Step 3: Cross multiply
    68,812.54x = 94,961.36 × 40,151.90
  4. Step 4: Simplify right side
    68,812.54x = 3,812,879,368.37
  5. Step 5: Solve for x
    x = 3,812,879,368.37/68,812.54
  6. Step 6: Final answer
    x = 55,409.66

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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.