Home / 71,784.12-107,694.18-42,226.68

Finding the Fourth Proportional to 71,784.12, 107,694.18 and 42,226.68

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Solution

The fourth proportional to 71,784.12, 107,694.18 and 42,226.68 is: 63,350.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,784.12 : 107,694.18 = 42,226.68 : x
  2. Step 2: Convert to fraction form
    71,784.12/107,694.18 = 42,226.68/x
  3. Step 3: Cross multiply
    71,784.12x = 107,694.18 × 42,226.68
  4. Step 4: Simplify right side
    71,784.12x = 4,547,567,676.72
  5. Step 5: Solve for x
    x = 4,547,567,676.72/71,784.12
  6. Step 6: Final answer
    x = 63,350.61

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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.