Home / 55,447.92-76,518-30,297.60

Finding the Fourth Proportional to 55,447.92, 76,518 and 30,297.60

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Solution

The fourth proportional to 55,447.92, 76,518 and 30,297.60 is: 41,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,447.92 : 76,518 = 30,297.60 : x
  2. Step 2: Convert to fraction form
    55,447.92/76,518 = 30,297.60/x
  3. Step 3: Cross multiply
    55,447.92x = 76,518 × 30,297.60
  4. Step 4: Simplify right side
    55,447.92x = 2,318,311,756.80
  5. Step 5: Solve for x
    x = 2,318,311,756.80/55,447.92
  6. Step 6: Final answer
    x = 41,810.62

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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.