Home / 55,905.92-83,864.31-20,837.36

Finding the Fourth Proportional to 55,905.92, 83,864.31 and 20,837.36

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Solution

The fourth proportional to 55,905.92, 83,864.31 and 20,837.36 is: 31,258.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,905.92 : 83,864.31 = 20,837.36 : x
  2. Step 2: Convert to fraction form
    55,905.92/83,864.31 = 20,837.36/x
  3. Step 3: Cross multiply
    55,905.92x = 83,864.31 × 20,837.36
  4. Step 4: Simplify right side
    55,905.92x = 1,747,510,818.62
  5. Step 5: Solve for x
    x = 1,747,510,818.62/55,905.92
  6. Step 6: Final answer
    x = 31,258.06

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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.