Home / 68,416.92-94,415.22-40,122.36

Finding the Fourth Proportional to 68,416.92, 94,415.22 and 40,122.36

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Solution

The fourth proportional to 68,416.92, 94,415.22 and 40,122.36 is: 55,368.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,416.92 : 94,415.22 = 40,122.36 : x
  2. Step 2: Convert to fraction form
    68,416.92/94,415.22 = 40,122.36/x
  3. Step 3: Cross multiply
    68,416.92x = 94,415.22 × 40,122.36
  4. Step 4: Simplify right side
    68,416.92x = 3,788,161,446.32
  5. Step 5: Solve for x
    x = 3,788,161,446.32/68,416.92
  6. Step 6: Final answer
    x = 55,368.78

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1.5x scale

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.