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Finding the Fourth Proportional to 70,180.88, 105,262.68 and 30,730.64

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Solution

The fourth proportional to 70,180.88, 105,262.68 and 30,730.64 is: 46,092.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,180.88 : 105,262.68 = 30,730.64 : x
  2. Step 2: Convert to fraction form
    70,180.88/105,262.68 = 30,730.64/x
  3. Step 3: Cross multiply
    70,180.88x = 105,262.68 × 30,730.64
  4. Step 4: Simplify right side
    70,180.88x = 3,234,789,524.52
  5. Step 5: Solve for x
    x = 3,234,789,524.52/70,180.88
  6. Step 6: Final answer
    x = 46,092.18

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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.