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Finding the Fourth Proportional to 69,267.60, 103,901.50 and 19,347.70

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Solution

The fourth proportional to 69,267.60, 103,901.50 and 19,347.70 is: 29,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,267.60 : 103,901.50 = 19,347.70 : x
  2. Step 2: Convert to fraction form
    69,267.60/103,901.50 = 19,347.70/x
  3. Step 3: Cross multiply
    69,267.60x = 103,901.50 × 19,347.70
  4. Step 4: Simplify right side
    69,267.60x = 2,010,255,051.55
  5. Step 5: Solve for x
    x = 2,010,255,051.55/69,267.60
  6. Step 6: Final answer
    x = 29,021.58

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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.