Home / 55,087.36-82,631.28-21,806.08

Finding the Fourth Proportional to 55,087.36, 82,631.28 and 21,806.08

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Solution

The fourth proportional to 55,087.36, 82,631.28 and 21,806.08 is: 32,709.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,087.36 : 82,631.28 = 21,806.08 : x
  2. Step 2: Convert to fraction form
    55,087.36/82,631.28 = 21,806.08/x
  3. Step 3: Cross multiply
    55,087.36x = 82,631.28 × 21,806.08
  4. Step 4: Simplify right side
    55,087.36x = 1,801,864,302.18
  5. Step 5: Solve for x
    x = 1,801,864,302.18/55,087.36
  6. Step 6: Final answer
    x = 32,709.22

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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.