Home / 55,771.36-83,689.68-20,735.20

Finding the Fourth Proportional to 55,771.36, 83,689.68 and 20,735.20

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Solution

The fourth proportional to 55,771.36, 83,689.68 and 20,735.20 is: 31,114.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,771.36 : 83,689.68 = 20,735.20 : x
  2. Step 2: Convert to fraction form
    55,771.36/83,689.68 = 20,735.20/x
  3. Step 3: Cross multiply
    55,771.36x = 83,689.68 × 20,735.20
  4. Step 4: Simplify right side
    55,771.36x = 1,735,322,252.74
  5. Step 5: Solve for x
    x = 1,735,322,252.74/55,771.36
  6. Step 6: Final answer
    x = 31,114.94

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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.