Home / 83,802.61-115,672.13-49,835.04

Finding the Fourth Proportional to 83,802.61, 115,672.13 and 49,835.04

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Solution

The fourth proportional to 83,802.61, 115,672.13 and 49,835.04 is: 68,786.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,802.61 : 115,672.13 = 49,835.04 : x
  2. Step 2: Convert to fraction form
    83,802.61/115,672.13 = 49,835.04/x
  3. Step 3: Cross multiply
    83,802.61x = 115,672.13 × 49,835.04
  4. Step 4: Simplify right side
    83,802.61x = 5,764,525,225.44
  5. Step 5: Solve for x
    x = 5,764,525,225.44/83,802.61
  6. Step 6: Final answer
    x = 68,786.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.