Home / 83,774.45-115,598.44-49,783.61

Finding the Fourth Proportional to 83,774.45, 115,598.44 and 49,783.61

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Solution

The fourth proportional to 83,774.45, 115,598.44 and 49,783.61 is: 68,695.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,774.45 : 115,598.44 = 49,783.61 : x
  2. Step 2: Convert to fraction form
    83,774.45/115,598.44 = 49,783.61/x
  3. Step 3: Cross multiply
    83,774.45x = 115,598.44 × 49,783.61
  4. Step 4: Simplify right side
    83,774.45x = 5,754,908,004.79
  5. Step 5: Solve for x
    x = 5,754,908,004.79/83,774.45
  6. Step 6: Final answer
    x = 68,695.26

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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.