Home / 56,239.83-84,331.94-18,787.05

Finding the Fourth Proportional to 56,239.83, 84,331.94 and 18,787.05

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Solution

The fourth proportional to 56,239.83, 84,331.94 and 18,787.05 is: 28,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,239.83 : 84,331.94 = 18,787.05 : x
  2. Step 2: Convert to fraction form
    56,239.83/84,331.94 = 18,787.05/x
  3. Step 3: Cross multiply
    56,239.83x = 84,331.94 × 18,787.05
  4. Step 4: Simplify right side
    56,239.83x = 1,584,348,279.44
  5. Step 5: Solve for x
    x = 1,584,348,279.44/56,239.83
  6. Step 6: Final answer
    x = 28,171.29

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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.