Home / 51,446.22-77,172.31-19,856.45

Finding the Fourth Proportional to 51,446.22, 77,172.31 and 19,856.45

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Solution

The fourth proportional to 51,446.22, 77,172.31 and 19,856.45 is: 29,785.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,446.22 : 77,172.31 = 19,856.45 : x
  2. Step 2: Convert to fraction form
    51,446.22/77,172.31 = 19,856.45/x
  3. Step 3: Cross multiply
    51,446.22x = 77,172.31 × 19,856.45
  4. Step 4: Simplify right side
    51,446.22x = 1,532,368,332.65
  5. Step 5: Solve for x
    x = 1,532,368,332.65/51,446.22
  6. Step 6: Final answer
    x = 29,785.83

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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.