Home / 53,947.56-80,869.11-20,641.98

Finding the Fourth Proportional to 53,947.56, 80,869.11 and 20,641.98

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Solution

The fourth proportional to 53,947.56, 80,869.11 and 20,641.98 is: 30,942.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,947.56 : 80,869.11 = 20,641.98 : x
  2. Step 2: Convert to fraction form
    53,947.56/80,869.11 = 20,641.98/x
  3. Step 3: Cross multiply
    53,947.56x = 80,869.11 × 20,641.98
  4. Step 4: Simplify right side
    53,947.56x = 1,669,298,551.24
  5. Step 5: Solve for x
    x = 1,669,298,551.24/53,947.56
  6. Step 6: Final answer
    x = 30,942.99

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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.