Home / 53,456.79-80,247.30-31,286.08

Finding the Fourth Proportional to 53,456.79, 80,247.30 and 31,286.08

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Solution

The fourth proportional to 53,456.79, 80,247.30 and 31,286.08 is: 46,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,456.79 : 80,247.30 = 31,286.08 : x
  2. Step 2: Convert to fraction form
    53,456.79/80,247.30 = 31,286.08/x
  3. Step 3: Cross multiply
    53,456.79x = 80,247.30 × 31,286.08
  4. Step 4: Simplify right side
    53,456.79x = 2,510,623,246.97
  5. Step 5: Solve for x
    x = 2,510,623,246.97/53,456.79
  6. Step 6: Final answer
    x = 46,965.47

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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.