Home / 56,010.25-84,013.21-13,890.43

Finding the Fourth Proportional to 56,010.25, 84,013.21 and 13,890.43

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Solution

The fourth proportional to 56,010.25, 84,013.21 and 13,890.43 is: 20,835.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,010.25 : 84,013.21 = 13,890.43 : x
  2. Step 2: Convert to fraction form
    56,010.25/84,013.21 = 13,890.43/x
  3. Step 3: Cross multiply
    56,010.25x = 84,013.21 × 13,890.43
  4. Step 4: Simplify right side
    56,010.25x = 1,166,979,612.58
  5. Step 5: Solve for x
    x = 1,166,979,612.58/56,010.25
  6. Step 6: Final answer
    x = 20,835.11

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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.