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Finding the Fourth Proportional to 69,602.84, 104,403.36 and 17,012.78

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Solution

The fourth proportional to 69,602.84, 104,403.36 and 17,012.78 is: 25,518.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,602.84 : 104,403.36 = 17,012.78 : x
  2. Step 2: Convert to fraction form
    69,602.84/104,403.36 = 17,012.78/x
  3. Step 3: Cross multiply
    69,602.84x = 104,403.36 × 17,012.78
  4. Step 4: Simplify right side
    69,602.84x = 1,776,191,394.94
  5. Step 5: Solve for x
    x = 1,776,191,394.94/69,602.84
  6. Step 6: Final answer
    x = 25,518.95

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1.5x scale

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.