Home / 68,943.88-95,186.10-47,715.40

Finding the Fourth Proportional to 68,943.88, 95,186.10 and 47,715.40

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Solution

The fourth proportional to 68,943.88, 95,186.10 and 47,715.40 is: 65,877.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,943.88 : 95,186.10 = 47,715.40 : x
  2. Step 2: Convert to fraction form
    68,943.88/95,186.10 = 47,715.40/x
  3. Step 3: Cross multiply
    68,943.88x = 95,186.10 × 47,715.40
  4. Step 4: Simplify right side
    68,943.88x = 4,541,842,835.94
  5. Step 5: Solve for x
    x = 4,541,842,835.94/68,943.88
  6. Step 6: Final answer
    x = 65,877.39

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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.