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Finding the Fourth Proportional to 69,794.80, 104,692.20 and 66,514.30

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Solution

The fourth proportional to 69,794.80, 104,692.20 and 66,514.30 is: 99,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,794.80 : 104,692.20 = 66,514.30 : x
  2. Step 2: Convert to fraction form
    69,794.80/104,692.20 = 66,514.30/x
  3. Step 3: Cross multiply
    69,794.80x = 104,692.20 × 66,514.30
  4. Step 4: Simplify right side
    69,794.80x = 6,963,528,398.46
  5. Step 5: Solve for x
    x = 6,963,528,398.46/69,794.80
  6. Step 6: Final answer
    x = 99,771.45

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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.