Home / 68,991.84-95,208.60-40,331.20

Finding the Fourth Proportional to 68,991.84, 95,208.60 and 40,331.20

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Solution

The fourth proportional to 68,991.84, 95,208.60 and 40,331.20 is: 55,656.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,991.84 : 95,208.60 = 40,331.20 : x
  2. Step 2: Convert to fraction form
    68,991.84/95,208.60 = 40,331.20/x
  3. Step 3: Cross multiply
    68,991.84x = 95,208.60 × 40,331.20
  4. Step 4: Simplify right side
    68,991.84x = 3,839,877,088.32
  5. Step 5: Solve for x
    x = 3,839,877,088.32/68,991.84
  6. Step 6: Final answer
    x = 55,656.97

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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.