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Finding the Fourth Proportional to 48,385, 72,525.66 and 20,297.98

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Solution

The fourth proportional to 48,385, 72,525.66 and 20,297.98 is: 30,425.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,385 : 72,525.66 = 20,297.98 : x
  2. Step 2: Convert to fraction form
    48,385/72,525.66 = 20,297.98/x
  3. Step 3: Cross multiply
    48,385x = 72,525.66 × 20,297.98
  4. Step 4: Simplify right side
    48,385x = 1,472,124,396.17
  5. Step 5: Solve for x
    x = 1,472,124,396.17/48,385
  6. Step 6: Final answer
    x = 30,425.22

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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.