Home / 45,127.12-67,704.52-20,188.16

Finding the Fourth Proportional to 45,127.12, 67,704.52 and 20,188.16

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Solution

The fourth proportional to 45,127.12, 67,704.52 and 20,188.16 is: 30,288.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,127.12 : 67,704.52 = 20,188.16 : x
  2. Step 2: Convert to fraction form
    45,127.12/67,704.52 = 20,188.16/x
  3. Step 3: Cross multiply
    45,127.12x = 67,704.52 × 20,188.16
  4. Step 4: Simplify right side
    45,127.12x = 1,366,829,682.48
  5. Step 5: Solve for x
    x = 1,366,829,682.48/45,127.12
  6. Step 6: Final answer
    x = 30,288.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.