Home / 55,169.78-82,762.16-17,717.40

Finding the Fourth Proportional to 55,169.78, 82,762.16 and 17,717.40

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Solution

The fourth proportional to 55,169.78, 82,762.16 and 17,717.40 is: 26,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,169.78 : 82,762.16 = 17,717.40 : x
  2. Step 2: Convert to fraction form
    55,169.78/82,762.16 = 17,717.40/x
  3. Step 3: Cross multiply
    55,169.78x = 82,762.16 × 17,717.40
  4. Step 4: Simplify right side
    55,169.78x = 1,466,330,205.00
  5. Step 5: Solve for x
    x = 1,466,330,205.00/55,169.78
  6. Step 6: Final answer
    x = 26,578.51

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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.