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Finding the Fourth Proportional to 86,203.28, 118,932.84 and 52,200.90

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Solution

The fourth proportional to 86,203.28, 118,932.84 and 52,200.90 is: 72,020.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,203.28 : 118,932.84 = 52,200.90 : x
  2. Step 2: Convert to fraction form
    86,203.28/118,932.84 = 52,200.90/x
  3. Step 3: Cross multiply
    86,203.28x = 118,932.84 × 52,200.90
  4. Step 4: Simplify right side
    86,203.28x = 6,208,401,287.56
  5. Step 5: Solve for x
    x = 6,208,401,287.56/86,203.28
  6. Step 6: Final answer
    x = 72,020.47

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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.