Home / 83,736.40-115,492.60-57,937.90

Finding the Fourth Proportional to 83,736.40, 115,492.60 and 57,937.90

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Solution

The fourth proportional to 83,736.40, 115,492.60 and 57,937.90 is: 79,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,736.40 : 115,492.60 = 57,937.90 : x
  2. Step 2: Convert to fraction form
    83,736.40/115,492.60 = 57,937.90/x
  3. Step 3: Cross multiply
    83,736.40x = 115,492.60 × 57,937.90
  4. Step 4: Simplify right side
    83,736.40x = 6,691,398,709.54
  5. Step 5: Solve for x
    x = 6,691,398,709.54/83,736.40
  6. Step 6: Final answer
    x = 79,910.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.