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Finding the Fourth Proportional to 52,815.60, 79,266.60 and 51,087.60

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Solution

The fourth proportional to 52,815.60, 79,266.60 and 51,087.60 is: 76,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,815.60 : 79,266.60 = 51,087.60 : x
  2. Step 2: Convert to fraction form
    52,815.60/79,266.60 = 51,087.60/x
  3. Step 3: Cross multiply
    52,815.60x = 79,266.60 × 51,087.60
  4. Step 4: Simplify right side
    52,815.60x = 4,049,540,354.16
  5. Step 5: Solve for x
    x = 4,049,540,354.16/52,815.60
  6. Step 6: Final answer
    x = 76,673.19

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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.