Home / 36,106.70-54,140.13-11,139.80

Finding the Fourth Proportional to 36,106.70, 54,140.13 and 11,139.80

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Solution

The fourth proportional to 36,106.70, 54,140.13 and 11,139.80 is: 16,703.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,106.70 : 54,140.13 = 11,139.80 : x
  2. Step 2: Convert to fraction form
    36,106.70/54,140.13 = 11,139.80/x
  3. Step 3: Cross multiply
    36,106.70x = 54,140.13 × 11,139.80
  4. Step 4: Simplify right side
    36,106.70x = 603,109,949.47
  5. Step 5: Solve for x
    x = 603,109,949.47/36,106.70
  6. Step 6: Final answer
    x = 16,703.55

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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.