Home / 83,806.05-125,638.21-36,385.36

Finding the Fourth Proportional to 83,806.05, 125,638.21 and 36,385.36

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Solution

The fourth proportional to 83,806.05, 125,638.21 and 36,385.36 is: 54,547.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,806.05 : 125,638.21 = 36,385.36 : x
  2. Step 2: Convert to fraction form
    83,806.05/125,638.21 = 36,385.36/x
  3. Step 3: Cross multiply
    83,806.05x = 125,638.21 × 36,385.36
  4. Step 4: Simplify right side
    83,806.05x = 4,571,391,500.61
  5. Step 5: Solve for x
    x = 4,571,391,500.61/83,806.05
  6. Step 6: Final answer
    x = 54,547.27

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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.