Home / 55,758.55-83,610.15-20,218.45

Finding the Fourth Proportional to 55,758.55, 83,610.15 and 20,218.45

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Solution

The fourth proportional to 55,758.55, 83,610.15 and 20,218.45 is: 30,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,758.55 : 83,610.15 = 20,218.45 : x
  2. Step 2: Convert to fraction form
    55,758.55/83,610.15 = 20,218.45/x
  3. Step 3: Cross multiply
    55,758.55x = 83,610.15 × 20,218.45
  4. Step 4: Simplify right side
    55,758.55x = 1,690,467,637.27
  5. Step 5: Solve for x
    x = 1,690,467,637.27/55,758.55
  6. Step 6: Final answer
    x = 30,317.64

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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.