Home / 55,684.56-76,912.20-40,553.28

Finding the Fourth Proportional to 55,684.56, 76,912.20 and 40,553.28

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Solution

The fourth proportional to 55,684.56, 76,912.20 and 40,553.28 is: 56,012.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,684.56 : 76,912.20 = 40,553.28 : x
  2. Step 2: Convert to fraction form
    55,684.56/76,912.20 = 40,553.28/x
  3. Step 3: Cross multiply
    55,684.56x = 76,912.20 × 40,553.28
  4. Step 4: Simplify right side
    55,684.56x = 3,119,041,982.02
  5. Step 5: Solve for x
    x = 3,119,041,982.02/55,684.56
  6. Step 6: Final answer
    x = 56,012.69

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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.