Home / 57,178.48-78,730.20-50,793.96

Finding the Fourth Proportional to 57,178.48, 78,730.20 and 50,793.96

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Solution

The fourth proportional to 57,178.48, 78,730.20 and 50,793.96 is: 69,939.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,178.48 : 78,730.20 = 50,793.96 : x
  2. Step 2: Convert to fraction form
    57,178.48/78,730.20 = 50,793.96/x
  3. Step 3: Cross multiply
    57,178.48x = 78,730.20 × 50,793.96
  4. Step 4: Simplify right side
    57,178.48x = 3,999,018,629.59
  5. Step 5: Solve for x
    x = 3,999,018,629.59/57,178.48
  6. Step 6: Final answer
    x = 69,939.23

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Why These Related Problems?

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