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Finding the Fourth Proportional to 69,368.46, 104,056.29 and 21,988.59

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Solution

The fourth proportional to 69,368.46, 104,056.29 and 21,988.59 is: 32,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,368.46 : 104,056.29 = 21,988.59 : x
  2. Step 2: Convert to fraction form
    69,368.46/104,056.29 = 21,988.59/x
  3. Step 3: Cross multiply
    69,368.46x = 104,056.29 × 21,988.59
  4. Step 4: Simplify right side
    69,368.46x = 2,288,051,097.73
  5. Step 5: Solve for x
    x = 2,288,051,097.73/69,368.46
  6. Step 6: Final answer
    x = 32,984.03

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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.