Home / 55,129.33-82,721.32-21,848.66

Finding the Fourth Proportional to 55,129.33, 82,721.32 and 21,848.66

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Solution

The fourth proportional to 55,129.33, 82,721.32 and 21,848.66 is: 32,783.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.33 : 82,721.32 = 21,848.66 : x
  2. Step 2: Convert to fraction form
    55,129.33/82,721.32 = 21,848.66/x
  3. Step 3: Cross multiply
    55,129.33x = 82,721.32 × 21,848.66
  4. Step 4: Simplify right side
    55,129.33x = 1,807,349,527.20
  5. Step 5: Solve for x
    x = 1,807,349,527.20/55,129.33
  6. Step 6: Final answer
    x = 32,783.81

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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.