Home / 68,410.86-94,382.06-40,111.08

Finding the Fourth Proportional to 68,410.86, 94,382.06 and 40,111.08

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Solution

The fourth proportional to 68,410.86, 94,382.06 and 40,111.08 is: 55,338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,410.86 : 94,382.06 = 40,111.08 : x
  2. Step 2: Convert to fraction form
    68,410.86/94,382.06 = 40,111.08/x
  3. Step 3: Cross multiply
    68,410.86x = 94,382.06 × 40,111.08
  4. Step 4: Simplify right side
    68,410.86x = 3,785,766,158.67
  5. Step 5: Solve for x
    x = 3,785,766,158.67/68,410.86
  6. Step 6: Final answer
    x = 55,338.67

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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.