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Finding the Fourth Proportional to 68,002.80, 101,955.60 and 30,532.20

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Solution

The fourth proportional to 68,002.80, 101,955.60 and 30,532.20 is: 45,776.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,002.80 : 101,955.60 = 30,532.20 : x
  2. Step 2: Convert to fraction form
    68,002.80/101,955.60 = 30,532.20/x
  3. Step 3: Cross multiply
    68,002.80x = 101,955.60 × 30,532.20
  4. Step 4: Simplify right side
    68,002.80x = 3,112,928,770.32
  5. Step 5: Solve for x
    x = 3,112,928,770.32/68,002.80
  6. Step 6: Final answer
    x = 45,776.48

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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.