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Finding the Fourth Proportional to 50,261.69, 75,393.12 and 12,821.69

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Solution

The fourth proportional to 50,261.69, 75,393.12 and 12,821.69 is: 19,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,261.69 : 75,393.12 = 12,821.69 : x
  2. Step 2: Convert to fraction form
    50,261.69/75,393.12 = 12,821.69/x
  3. Step 3: Cross multiply
    50,261.69x = 75,393.12 × 12,821.69
  4. Step 4: Simplify right side
    50,261.69x = 966,666,835.81
  5. Step 5: Solve for x
    x = 966,666,835.81/50,261.69
  6. Step 6: Final answer
    x = 19,232.68

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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.