Home / 67,245.31-100,587.05-47,253.40

Finding the Fourth Proportional to 67,245.31, 100,587.05 and 47,253.40

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Solution

The fourth proportional to 67,245.31, 100,587.05 and 47,253.40 is: 70,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,245.31 : 100,587.05 = 47,253.40 : x
  2. Step 2: Convert to fraction form
    67,245.31/100,587.05 = 47,253.40/x
  3. Step 3: Cross multiply
    67,245.31x = 100,587.05 × 47,253.40
  4. Step 4: Simplify right side
    67,245.31x = 4,753,079,797.94
  5. Step 5: Solve for x
    x = 4,753,079,797.94/67,245.31
  6. Step 6: Final answer
    x = 70,682.69

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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.