Home / 83,638.78-125,457.44-36,891.70

Finding the Fourth Proportional to 83,638.78, 125,457.44 and 36,891.70

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Solution

The fourth proportional to 83,638.78, 125,457.44 and 36,891.70 is: 55,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,638.78 : 125,457.44 = 36,891.70 : x
  2. Step 2: Convert to fraction form
    83,638.78/125,457.44 = 36,891.70/x
  3. Step 3: Cross multiply
    83,638.78x = 125,457.44 × 36,891.70
  4. Step 4: Simplify right side
    83,638.78x = 4,628,337,704.19
  5. Step 5: Solve for x
    x = 4,628,337,704.19/83,638.78
  6. Step 6: Final answer
    x = 55,337.22

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1.5x scale

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.