Home / 55,517.45-76,639.10-35,401.37

Finding the Fourth Proportional to 55,517.45, 76,639.10 and 35,401.37

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Solution

The fourth proportional to 55,517.45, 76,639.10 and 35,401.37 is: 48,869.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,517.45 : 76,639.10 = 35,401.37 : x
  2. Step 2: Convert to fraction form
    55,517.45/76,639.10 = 35,401.37/x
  3. Step 3: Cross multiply
    55,517.45x = 76,639.10 × 35,401.37
  4. Step 4: Simplify right side
    55,517.45x = 2,713,129,135.57
  5. Step 5: Solve for x
    x = 2,713,129,135.57/55,517.45
  6. Step 6: Final answer
    x = 48,869.84

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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.