Home / 109,869.80-164,809.49-53,757.15

Finding the Fourth Proportional to 109,869.80, 164,809.49 and 53,757.15

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Solution

The fourth proportional to 109,869.80, 164,809.49 and 53,757.15 is: 80,638.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,869.80 : 164,809.49 = 53,757.15 : x
  2. Step 2: Convert to fraction form
    109,869.80/164,809.49 = 53,757.15/x
  3. Step 3: Cross multiply
    109,869.80x = 164,809.49 × 53,757.15
  4. Step 4: Simplify right side
    109,869.80x = 8,859,689,126.99
  5. Step 5: Solve for x
    x = 8,859,689,126.99/109,869.80
  6. Step 6: Final answer
    x = 80,638.07

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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.