Home / 78,709.39-118,029.25-22,536.70

Finding the Fourth Proportional to 78,709.39, 118,029.25 and 22,536.70

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Solution

The fourth proportional to 78,709.39, 118,029.25 and 22,536.70 is: 33,795.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,709.39 : 118,029.25 = 22,536.70 : x
  2. Step 2: Convert to fraction form
    78,709.39/118,029.25 = 22,536.70/x
  3. Step 3: Cross multiply
    78,709.39x = 118,029.25 × 22,536.70
  4. Step 4: Simplify right side
    78,709.39x = 2,659,989,531.57
  5. Step 5: Solve for x
    x = 2,659,989,531.57/78,709.39
  6. Step 6: Final answer
    x = 33,795.07

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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.