Home / 71,336.08-107,009.88-21,412.72

Finding the Fourth Proportional to 71,336.08, 107,009.88 and 21,412.72

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Solution

The fourth proportional to 71,336.08, 107,009.88 and 21,412.72 is: 32,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,336.08 : 107,009.88 = 21,412.72 : x
  2. Step 2: Convert to fraction form
    71,336.08/107,009.88 = 21,412.72/x
  3. Step 3: Cross multiply
    71,336.08x = 107,009.88 × 21,412.72
  4. Step 4: Simplify right side
    71,336.08x = 2,291,372,597.67
  5. Step 5: Solve for x
    x = 2,291,372,597.67/71,336.08
  6. Step 6: Final answer
    x = 32,120.81

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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.