Home / 55,902.76-83,853.30-13,783.36

Finding the Fourth Proportional to 55,902.76, 83,853.30 and 13,783.36

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Solution

The fourth proportional to 55,902.76, 83,853.30 and 13,783.36 is: 20,674.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,902.76 : 83,853.30 = 13,783.36 : x
  2. Step 2: Convert to fraction form
    55,902.76/83,853.30 = 13,783.36/x
  3. Step 3: Cross multiply
    55,902.76x = 83,853.30 × 13,783.36
  4. Step 4: Simplify right side
    55,902.76x = 1,155,780,221.09
  5. Step 5: Solve for x
    x = 1,155,780,221.09/55,902.76
  6. Step 6: Final answer
    x = 20,674.83

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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.