Home / 75,530.66-113,199.08-31,188.56

Finding the Fourth Proportional to 75,530.66, 113,199.08 and 31,188.56

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Solution

The fourth proportional to 75,530.66, 113,199.08 and 31,188.56 is: 46,742.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,530.66 : 113,199.08 = 31,188.56 : x
  2. Step 2: Convert to fraction form
    75,530.66/113,199.08 = 31,188.56/x
  3. Step 3: Cross multiply
    75,530.66x = 113,199.08 × 31,188.56
  4. Step 4: Simplify right side
    75,530.66x = 3,530,516,298.52
  5. Step 5: Solve for x
    x = 3,530,516,298.52/75,530.66
  6. Step 6: Final answer
    x = 46,742.82

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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.