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Finding the Fourth Proportional to 69,306, 104,005.08 and 25,530

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Solution

The fourth proportional to 69,306, 104,005.08 and 25,530 is: 38,311.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,306 : 104,005.08 = 25,530 : x
  2. Step 2: Convert to fraction form
    69,306/104,005.08 = 25,530/x
  3. Step 3: Cross multiply
    69,306x = 104,005.08 × 25,530
  4. Step 4: Simplify right side
    69,306x = 2,655,249,692.40
  5. Step 5: Solve for x
    x = 2,655,249,692.40/69,306
  6. Step 6: Final answer
    x = 38,311.97

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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.