Home / 45,218.18-67,840.44-20,252.66

Finding the Fourth Proportional to 45,218.18, 67,840.44 and 20,252.66

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Solution

The fourth proportional to 45,218.18, 67,840.44 and 20,252.66 is: 30,384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,218.18 : 67,840.44 = 20,252.66 : x
  2. Step 2: Convert to fraction form
    45,218.18/67,840.44 = 20,252.66/x
  3. Step 3: Cross multiply
    45,218.18x = 67,840.44 × 20,252.66
  4. Step 4: Simplify right side
    45,218.18x = 1,373,949,365.57
  5. Step 5: Solve for x
    x = 1,373,949,365.57/45,218.18
  6. Step 6: Final answer
    x = 30,384.89

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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.