Home / 55,549.44-83,315.20-20,505.60

Finding the Fourth Proportional to 55,549.44, 83,315.20 and 20,505.60

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Solution

The fourth proportional to 55,549.44, 83,315.20 and 20,505.60 is: 30,755.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,549.44 : 83,315.20 = 20,505.60 : x
  2. Step 2: Convert to fraction form
    55,549.44/83,315.20 = 20,505.60/x
  3. Step 3: Cross multiply
    55,549.44x = 83,315.20 × 20,505.60
  4. Step 4: Simplify right side
    55,549.44x = 1,708,428,165.12
  5. Step 5: Solve for x
    x = 1,708,428,165.12/55,549.44
  6. Step 6: Final answer
    x = 30,755.09

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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.