Home / 45,108.54-67,618.17-21,374.37

Finding the Fourth Proportional to 45,108.54, 67,618.17 and 21,374.37

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Solution

The fourth proportional to 45,108.54, 67,618.17 and 21,374.37 is: 32,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,108.54 : 67,618.17 = 21,374.37 : x
  2. Step 2: Convert to fraction form
    45,108.54/67,618.17 = 21,374.37/x
  3. Step 3: Cross multiply
    45,108.54x = 67,618.17 × 21,374.37
  4. Step 4: Simplify right side
    45,108.54x = 1,445,295,784.30
  5. Step 5: Solve for x
    x = 1,445,295,784.30/45,108.54
  6. Step 6: Final answer
    x = 32,040.40

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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.