Home / 54,982.32-82,417.14-21,688.89

Finding the Fourth Proportional to 54,982.32, 82,417.14 and 21,688.89

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Solution

The fourth proportional to 54,982.32, 82,417.14 and 21,688.89 is: 32,511.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,982.32 : 82,417.14 = 21,688.89 : x
  2. Step 2: Convert to fraction form
    54,982.32/82,417.14 = 21,688.89/x
  3. Step 3: Cross multiply
    54,982.32x = 82,417.14 × 21,688.89
  4. Step 4: Simplify right side
    54,982.32x = 1,787,536,283.57
  5. Step 5: Solve for x
    x = 1,787,536,283.57/54,982.32
  6. Step 6: Final answer
    x = 32,511.11

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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.