Home / 45,051.21-67,511.20-21,650.31

Finding the Fourth Proportional to 45,051.21, 67,511.20 and 21,650.31

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Solution

The fourth proportional to 45,051.21, 67,511.20 and 21,650.31 is: 32,443.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,051.21 : 67,511.20 = 21,650.31 : x
  2. Step 2: Convert to fraction form
    45,051.21/67,511.20 = 21,650.31/x
  3. Step 3: Cross multiply
    45,051.21x = 67,511.20 × 21,650.31
  4. Step 4: Simplify right side
    45,051.21x = 1,461,638,408.47
  5. Step 5: Solve for x
    x = 1,461,638,408.47/45,051.21
  6. Step 6: Final answer
    x = 32,443.93

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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.