Home / 75,465.02-113,221.22-31,112.66

Finding the Fourth Proportional to 75,465.02, 113,221.22 and 31,112.66

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Solution

The fourth proportional to 75,465.02, 113,221.22 and 31,112.66 is: 46,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,465.02 : 113,221.22 = 31,112.66 : x
  2. Step 2: Convert to fraction form
    75,465.02/113,221.22 = 31,112.66/x
  3. Step 3: Cross multiply
    75,465.02x = 113,221.22 × 31,112.66
  4. Step 4: Simplify right side
    75,465.02x = 3,522,612,600.98
  5. Step 5: Solve for x
    x = 3,522,612,600.98/75,465.02
  6. Step 6: Final answer
    x = 46,678.75

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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.