Home / 78,742.73-118,163.43-52,465.94

Finding the Fourth Proportional to 78,742.73, 118,163.43 and 52,465.94

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Solution

The fourth proportional to 78,742.73, 118,163.43 and 52,465.94 is: 78,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,742.73 : 118,163.43 = 52,465.94 : x
  2. Step 2: Convert to fraction form
    78,742.73/118,163.43 = 52,465.94/x
  3. Step 3: Cross multiply
    78,742.73x = 118,163.43 × 52,465.94
  4. Step 4: Simplify right side
    78,742.73x = 6,199,555,428.57
  5. Step 5: Solve for x
    x = 6,199,555,428.57/78,742.73
  6. Step 6: Final answer
    x = 78,731.78

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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.