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Finding the Fourth Proportional to 56,408.94, 84,617.58 and 18,968.87

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Solution

The fourth proportional to 56,408.94, 84,617.58 and 18,968.87 is: 28,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,408.94 : 84,617.58 = 18,968.87 : x
  2. Step 2: Convert to fraction form
    56,408.94/84,617.58 = 18,968.87/x
  3. Step 3: Cross multiply
    56,408.94x = 84,617.58 × 18,968.87
  4. Step 4: Simplify right side
    56,408.94x = 1,605,099,451.65
  5. Step 5: Solve for x
    x = 1,605,099,451.65/56,408.94
  6. Step 6: Final answer
    x = 28,454.70

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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.