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Finding the Fourth Proportional to 37,212.50, 51,353.26 and 20,445.50

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Solution

The fourth proportional to 37,212.50, 51,353.26 and 20,445.50 is: 28,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,212.50 : 51,353.26 = 20,445.50 : x
  2. Step 2: Convert to fraction form
    37,212.50/51,353.26 = 20,445.50/x
  3. Step 3: Cross multiply
    37,212.50x = 51,353.26 × 20,445.50
  4. Step 4: Simplify right side
    37,212.50x = 1,049,943,077.33
  5. Step 5: Solve for x
    x = 1,049,943,077.33/37,212.50
  6. Step 6: Final answer
    x = 28,214.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.