Home / 83,638.34-125,480.70-38,673.42

Finding the Fourth Proportional to 83,638.34, 125,480.70 and 38,673.42

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Solution

The fourth proportional to 83,638.34, 125,480.70 and 38,673.42 is: 58,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,638.34 : 125,480.70 = 38,673.42 : x
  2. Step 2: Convert to fraction form
    83,638.34/125,480.70 = 38,673.42/x
  3. Step 3: Cross multiply
    83,638.34x = 125,480.70 × 38,673.42
  4. Step 4: Simplify right side
    83,638.34x = 4,852,767,812.99
  5. Step 5: Solve for x
    x = 4,852,767,812.99/83,638.34
  6. Step 6: Final answer
    x = 58,020.85

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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.