Home / 54,709.05-82,030.73-21,389.42

Finding the Fourth Proportional to 54,709.05, 82,030.73 and 21,389.42

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Solution

The fourth proportional to 54,709.05, 82,030.73 and 21,389.42 is: 32,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,709.05 : 82,030.73 = 21,389.42 : x
  2. Step 2: Convert to fraction form
    54,709.05/82,030.73 = 21,389.42/x
  3. Step 3: Cross multiply
    54,709.05x = 82,030.73 × 21,389.42
  4. Step 4: Simplify right side
    54,709.05x = 1,754,589,373.58
  5. Step 5: Solve for x
    x = 1,754,589,373.58/54,709.05
  6. Step 6: Final answer
    x = 32,071.28

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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.