Home / 55,655.28-76,821.72-35,512.12

Finding the Fourth Proportional to 55,655.28, 76,821.72 and 35,512.12

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Solution

The fourth proportional to 55,655.28, 76,821.72 and 35,512.12 is: 49,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,655.28 : 76,821.72 = 35,512.12 : x
  2. Step 2: Convert to fraction form
    55,655.28/76,821.72 = 35,512.12/x
  3. Step 3: Cross multiply
    55,655.28x = 76,821.72 × 35,512.12
  4. Step 4: Simplify right side
    55,655.28x = 2,728,102,139.25
  5. Step 5: Solve for x
    x = 2,728,102,139.25/55,655.28
  6. Step 6: Final answer
    x = 49,017.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.