Home / 67,388.80-92,991.60-39,089.04

Finding the Fourth Proportional to 67,388.80, 92,991.60 and 39,089.04

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Solution

The fourth proportional to 67,388.80, 92,991.60 and 39,089.04 is: 53,940.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,388.80 : 92,991.60 = 39,089.04 : x
  2. Step 2: Convert to fraction form
    67,388.80/92,991.60 = 39,089.04/x
  3. Step 3: Cross multiply
    67,388.80x = 92,991.60 × 39,089.04
  4. Step 4: Simplify right side
    67,388.80x = 3,634,952,372.06
  5. Step 5: Solve for x
    x = 3,634,952,372.06/67,388.80
  6. Step 6: Final answer
    x = 53,940.01

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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.