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Finding the Fourth Proportional to 83,692.01, 115,466.86 and 47,388.51

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Solution

The fourth proportional to 83,692.01, 115,466.86 and 47,388.51 is: 65,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,692.01 : 115,466.86 = 47,388.51 : x
  2. Step 2: Convert to fraction form
    83,692.01/115,466.86 = 47,388.51/x
  3. Step 3: Cross multiply
    83,692.01x = 115,466.86 × 47,388.51
  4. Step 4: Simplify right side
    83,692.01x = 5,471,802,449.78
  5. Step 5: Solve for x
    x = 5,471,802,449.78/83,692.01
  6. Step 6: Final answer
    x = 65,380.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.