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Finding the Fourth Proportional to 49,898.88, 68,869 and 47,656.80

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Solution

The fourth proportional to 49,898.88, 68,869 and 47,656.80 is: 65,774.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,898.88 : 68,869 = 47,656.80 : x
  2. Step 2: Convert to fraction form
    49,898.88/68,869 = 47,656.80/x
  3. Step 3: Cross multiply
    49,898.88x = 68,869 × 47,656.80
  4. Step 4: Simplify right side
    49,898.88x = 3,282,076,159.20
  5. Step 5: Solve for x
    x = 3,282,076,159.20/49,898.88
  6. Step 6: Final answer
    x = 65,774.55

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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.