Home / 55,769.80-76,962-30,276.67

Finding the Fourth Proportional to 55,769.80, 76,962 and 30,276.67

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Solution

The fourth proportional to 55,769.80, 76,962 and 30,276.67 is: 41,781.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,769.80 : 76,962 = 30,276.67 : x
  2. Step 2: Convert to fraction form
    55,769.80/76,962 = 30,276.67/x
  3. Step 3: Cross multiply
    55,769.80x = 76,962 × 30,276.67
  4. Step 4: Simplify right side
    55,769.80x = 2,330,153,076.54
  5. Step 5: Solve for x
    x = 2,330,153,076.54/55,769.80
  6. Step 6: Final answer
    x = 41,781.63

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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.