Home / 55,607.75-76,738.73-30,114.31

Finding the Fourth Proportional to 55,607.75, 76,738.73 and 30,114.31

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Solution

The fourth proportional to 55,607.75, 76,738.73 and 30,114.31 is: 41,557.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,607.75 : 76,738.73 = 30,114.31 : x
  2. Step 2: Convert to fraction form
    55,607.75/76,738.73 = 30,114.31/x
  3. Step 3: Cross multiply
    55,607.75x = 76,738.73 × 30,114.31
  4. Step 4: Simplify right side
    55,607.75x = 2,310,933,904.23
  5. Step 5: Solve for x
    x = 2,310,933,904.23/55,607.75
  6. Step 6: Final answer
    x = 41,557.77

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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.