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Finding the Fourth Proportional to 84,682.80, 127,024.42 and 28,562.32

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Solution

The fourth proportional to 84,682.80, 127,024.42 and 28,562.32 is: 42,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,682.80 : 127,024.42 = 28,562.32 : x
  2. Step 2: Convert to fraction form
    84,682.80/127,024.42 = 28,562.32/x
  3. Step 3: Cross multiply
    84,682.80x = 127,024.42 × 28,562.32
  4. Step 4: Simplify right side
    84,682.80x = 3,628,112,131.85
  5. Step 5: Solve for x
    x = 3,628,112,131.85/84,682.80
  6. Step 6: Final answer
    x = 42,843.55

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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.