Home / 54,466.56-81,688.50-21,185.87

Finding the Fourth Proportional to 54,466.56, 81,688.50 and 21,185.87

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Solution

The fourth proportional to 54,466.56, 81,688.50 and 21,185.87 is: 31,774.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,466.56 : 81,688.50 = 21,185.87 : x
  2. Step 2: Convert to fraction form
    54,466.56/81,688.50 = 21,185.87/x
  3. Step 3: Cross multiply
    54,466.56x = 81,688.50 × 21,185.87
  4. Step 4: Simplify right side
    54,466.56x = 1,730,641,533.05
  5. Step 5: Solve for x
    x = 1,730,641,533.05/54,466.56
  6. Step 6: Final answer
    x = 31,774.39

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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.