Home / 51,479.79-77,212.38-19,904.73

Finding the Fourth Proportional to 51,479.79, 77,212.38 and 19,904.73

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Solution

The fourth proportional to 51,479.79, 77,212.38 and 19,904.73 is: 29,854.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,479.79 : 77,212.38 = 19,904.73 : x
  2. Step 2: Convert to fraction form
    51,479.79/77,212.38 = 19,904.73/x
  3. Step 3: Cross multiply
    51,479.79x = 77,212.38 × 19,904.73
  4. Step 4: Simplify right side
    51,479.79x = 1,536,891,576.56
  5. Step 5: Solve for x
    x = 1,536,891,576.56/51,479.79
  6. Step 6: Final answer
    x = 29,854.27

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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.