Home / 55,704.16-76,872.36-30,553.12

Finding the Fourth Proportional to 55,704.16, 76,872.36 and 30,553.12

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Solution

The fourth proportional to 55,704.16, 76,872.36 and 30,553.12 is: 42,163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,704.16 : 76,872.36 = 30,553.12 : x
  2. Step 2: Convert to fraction form
    55,704.16/76,872.36 = 30,553.12/x
  3. Step 3: Cross multiply
    55,704.16x = 76,872.36 × 30,553.12
  4. Step 4: Simplify right side
    55,704.16x = 2,348,690,439.76
  5. Step 5: Solve for x
    x = 2,348,690,439.76/55,704.16
  6. Step 6: Final answer
    x = 42,163.65

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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.