Home / 83,634.55-115,363.18-49,618.95

Finding the Fourth Proportional to 83,634.55, 115,363.18 and 49,618.95

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Solution

The fourth proportional to 83,634.55, 115,363.18 and 49,618.95 is: 68,443.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,634.55 : 115,363.18 = 49,618.95 : x
  2. Step 2: Convert to fraction form
    83,634.55/115,363.18 = 49,618.95/x
  3. Step 3: Cross multiply
    83,634.55x = 115,363.18 × 49,618.95
  4. Step 4: Simplify right side
    83,634.55x = 5,724,199,860.26
  5. Step 5: Solve for x
    x = 5,724,199,860.26/83,634.55
  6. Step 6: Final answer
    x = 68,443.00

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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.