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Finding the Fourth Proportional to 70,065.06, 105,060.48 and 30,576.06

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Solution

The fourth proportional to 70,065.06, 105,060.48 and 30,576.06 is: 45,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,065.06 : 105,060.48 = 30,576.06 : x
  2. Step 2: Convert to fraction form
    70,065.06/105,060.48 = 30,576.06/x
  3. Step 3: Cross multiply
    70,065.06x = 105,060.48 × 30,576.06
  4. Step 4: Simplify right side
    70,065.06x = 3,212,335,540.11
  5. Step 5: Solve for x
    x = 3,212,335,540.11/70,065.06
  6. Step 6: Final answer
    x = 45,847.90

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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.