Home / 51,785.42-77,679.84-14,345.87

Finding the Fourth Proportional to 51,785.42, 77,679.84 and 14,345.87

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Solution

The fourth proportional to 51,785.42, 77,679.84 and 14,345.87 is: 21,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,785.42 : 77,679.84 = 14,345.87 : x
  2. Step 2: Convert to fraction form
    51,785.42/77,679.84 = 14,345.87/x
  3. Step 3: Cross multiply
    51,785.42x = 77,679.84 × 14,345.87
  4. Step 4: Simplify right side
    51,785.42x = 1,114,384,497.86
  5. Step 5: Solve for x
    x = 1,114,384,497.86/51,785.42
  6. Step 6: Final answer
    x = 21,519.27

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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.