Home / 76,881.22-115,326.69-32,499.70

Finding the Fourth Proportional to 76,881.22, 115,326.69 and 32,499.70

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Solution

The fourth proportional to 76,881.22, 115,326.69 and 32,499.70 is: 48,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,881.22 : 115,326.69 = 32,499.70 : x
  2. Step 2: Convert to fraction form
    76,881.22/115,326.69 = 32,499.70/x
  3. Step 3: Cross multiply
    76,881.22x = 115,326.69 × 32,499.70
  4. Step 4: Simplify right side
    76,881.22x = 3,748,082,826.99
  5. Step 5: Solve for x
    x = 3,748,082,826.99/76,881.22
  6. Step 6: Final answer
    x = 48,751.60

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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.