Home / 72,873.28-109,309.94-56,257.57

Finding the Fourth Proportional to 72,873.28, 109,309.94 and 56,257.57

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Solution

The fourth proportional to 72,873.28, 109,309.94 and 56,257.57 is: 84,386.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,873.28 : 109,309.94 = 56,257.57 : x
  2. Step 2: Convert to fraction form
    72,873.28/109,309.94 = 56,257.57/x
  3. Step 3: Cross multiply
    72,873.28x = 109,309.94 × 56,257.57
  4. Step 4: Simplify right side
    72,873.28x = 6,149,511,601.25
  5. Step 5: Solve for x
    x = 6,149,511,601.25/72,873.28
  6. Step 6: Final answer
    x = 84,386.37

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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.