Home / 55,159.20-82,738.80-40,471.20

Finding the Fourth Proportional to 55,159.20, 82,738.80 and 40,471.20

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Solution

The fourth proportional to 55,159.20, 82,738.80 and 40,471.20 is: 60,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,159.20 : 82,738.80 = 40,471.20 : x
  2. Step 2: Convert to fraction form
    55,159.20/82,738.80 = 40,471.20/x
  3. Step 3: Cross multiply
    55,159.20x = 82,738.80 × 40,471.20
  4. Step 4: Simplify right side
    55,159.20x = 3,348,538,522.56
  5. Step 5: Solve for x
    x = 3,348,538,522.56/55,159.20
  6. Step 6: Final answer
    x = 60,706.80

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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.