Home / 53,813.79-80,717.43-20,073.31

Finding the Fourth Proportional to 53,813.79, 80,717.43 and 20,073.31

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Solution

The fourth proportional to 53,813.79, 80,717.43 and 20,073.31 is: 30,108.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,813.79 : 80,717.43 = 20,073.31 : x
  2. Step 2: Convert to fraction form
    53,813.79/80,717.43 = 20,073.31/x
  3. Step 3: Cross multiply
    53,813.79x = 80,717.43 × 20,073.31
  4. Step 4: Simplify right side
    53,813.79x = 1,620,265,994.79
  5. Step 5: Solve for x
    x = 1,620,265,994.79/53,813.79
  6. Step 6: Final answer
    x = 30,108.75

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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.