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Finding the Fourth Proportional to 56,585.25, 84,879.63 and 21,055.41

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Solution

The fourth proportional to 56,585.25, 84,879.63 and 21,055.41 is: 31,583.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,585.25 : 84,879.63 = 21,055.41 : x
  2. Step 2: Convert to fraction form
    56,585.25/84,879.63 = 21,055.41/x
  3. Step 3: Cross multiply
    56,585.25x = 84,879.63 × 21,055.41
  4. Step 4: Simplify right side
    56,585.25x = 1,787,175,410.30
  5. Step 5: Solve for x
    x = 1,787,175,410.30/56,585.25
  6. Step 6: Final answer
    x = 31,583.77

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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.