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Finding the Fourth Proportional to 86,627.70, 129,801.83 and 49,076.10

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Solution

The fourth proportional to 86,627.70, 129,801.83 and 49,076.10 is: 73,534.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,627.70 : 129,801.83 = 49,076.10 : x
  2. Step 2: Convert to fraction form
    86,627.70/129,801.83 = 49,076.10/x
  3. Step 3: Cross multiply
    86,627.70x = 129,801.83 × 49,076.10
  4. Step 4: Simplify right side
    86,627.70x = 6,370,167,343.88
  5. Step 5: Solve for x
    x = 6,370,167,343.88/86,627.70
  6. Step 6: Final answer
    x = 73,534.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.