Home / 55,138.42-82,706.07-17,698.20

Finding the Fourth Proportional to 55,138.42, 82,706.07 and 17,698.20

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Solution

The fourth proportional to 55,138.42, 82,706.07 and 17,698.20 is: 26,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,138.42 : 82,706.07 = 17,698.20 : x
  2. Step 2: Convert to fraction form
    55,138.42/82,706.07 = 17,698.20/x
  3. Step 3: Cross multiply
    55,138.42x = 82,706.07 × 17,698.20
  4. Step 4: Simplify right side
    55,138.42x = 1,463,748,568.07
  5. Step 5: Solve for x
    x = 1,463,748,568.07/55,138.42
  6. Step 6: Final answer
    x = 26,546.80

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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.