Home / 51,431.04-77,145.12-16,372.80

Finding the Fourth Proportional to 51,431.04, 77,145.12 and 16,372.80

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Solution

The fourth proportional to 51,431.04, 77,145.12 and 16,372.80 is: 24,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,431.04 : 77,145.12 = 16,372.80 : x
  2. Step 2: Convert to fraction form
    51,431.04/77,145.12 = 16,372.80/x
  3. Step 3: Cross multiply
    51,431.04x = 77,145.12 × 16,372.80
  4. Step 4: Simplify right side
    51,431.04x = 1,263,081,620.74
  5. Step 5: Solve for x
    x = 1,263,081,620.74/51,431.04
  6. Step 6: Final answer
    x = 24,558.74

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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.