Home / 85,942.58-128,781.99-35,995.34

Finding the Fourth Proportional to 85,942.58, 128,781.99 and 35,995.34

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Solution

The fourth proportional to 85,942.58, 128,781.99 and 35,995.34 is: 53,937.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,942.58 : 128,781.99 = 35,995.34 : x
  2. Step 2: Convert to fraction form
    85,942.58/128,781.99 = 35,995.34/x
  3. Step 3: Cross multiply
    85,942.58x = 128,781.99 × 35,995.34
  4. Step 4: Simplify right side
    85,942.58x = 4,635,550,872.02
  5. Step 5: Solve for x
    x = 4,635,550,872.02/85,942.58
  6. Step 6: Final answer
    x = 53,937.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.