Home / 53,231.92-79,865.16-45,393.46

Finding the Fourth Proportional to 53,231.92, 79,865.16 and 45,393.46

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Solution

The fourth proportional to 53,231.92, 79,865.16 and 45,393.46 is: 68,104.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,231.92 : 79,865.16 = 45,393.46 : x
  2. Step 2: Convert to fraction form
    53,231.92/79,865.16 = 45,393.46/x
  3. Step 3: Cross multiply
    53,231.92x = 79,865.16 × 45,393.46
  4. Step 4: Simplify right side
    53,231.92x = 3,625,355,945.85
  5. Step 5: Solve for x
    x = 3,625,355,945.85/53,231.92
  6. Step 6: Final answer
    x = 68,104.93

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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.