Home / 54,858.20-82,280-21,569.32

Finding the Fourth Proportional to 54,858.20, 82,280 and 21,569.32

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Solution

The fourth proportional to 54,858.20, 82,280 and 21,569.32 is: 32,351.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,858.20 : 82,280 = 21,569.32 : x
  2. Step 2: Convert to fraction form
    54,858.20/82,280 = 21,569.32/x
  3. Step 3: Cross multiply
    54,858.20x = 82,280 × 21,569.32
  4. Step 4: Simplify right side
    54,858.20x = 1,774,723,649.60
  5. Step 5: Solve for x
    x = 1,774,723,649.60/54,858.20
  6. Step 6: Final answer
    x = 32,351.11

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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.