Home / 40,072.20-55,279.40-37,222.74

Finding the Fourth Proportional to 40,072.20, 55,279.40 and 37,222.74

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Solution

The fourth proportional to 40,072.20, 55,279.40 and 37,222.74 is: 51,348.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,072.20 : 55,279.40 = 37,222.74 : x
  2. Step 2: Convert to fraction form
    40,072.20/55,279.40 = 37,222.74/x
  3. Step 3: Cross multiply
    40,072.20x = 55,279.40 × 37,222.74
  4. Step 4: Simplify right side
    40,072.20x = 2,057,650,733.56
  5. Step 5: Solve for x
    x = 2,057,650,733.56/40,072.20
  6. Step 6: Final answer
    x = 51,348.58

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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.