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Finding the Fourth Proportional to 68,148.90, 102,004.65 and 53,277.30

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Solution

The fourth proportional to 68,148.90, 102,004.65 and 53,277.30 is: 79,744.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,148.90 : 102,004.65 = 53,277.30 : x
  2. Step 2: Convert to fraction form
    68,148.90/102,004.65 = 53,277.30/x
  3. Step 3: Cross multiply
    68,148.90x = 102,004.65 × 53,277.30
  4. Step 4: Simplify right side
    68,148.90x = 5,434,532,339.45
  5. Step 5: Solve for x
    x = 5,434,532,339.45/68,148.90
  6. Step 6: Final answer
    x = 79,744.98

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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.