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Finding the Fourth Proportional to 50,456.68, 75,658.68 and 18,840.72

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Solution

The fourth proportional to 50,456.68, 75,658.68 and 18,840.72 is: 28,251.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,456.68 : 75,658.68 = 18,840.72 : x
  2. Step 2: Convert to fraction form
    50,456.68/75,658.68 = 18,840.72/x
  3. Step 3: Cross multiply
    50,456.68x = 75,658.68 × 18,840.72
  4. Step 4: Simplify right side
    50,456.68x = 1,425,464,005.45
  5. Step 5: Solve for x
    x = 1,425,464,005.45/50,456.68
  6. Step 6: Final answer
    x = 28,251.24

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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.