Home / 51,145.96-76,673.76-19,959.40

Finding the Fourth Proportional to 51,145.96, 76,673.76 and 19,959.40

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Solution

The fourth proportional to 51,145.96, 76,673.76 and 19,959.40 is: 29,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,145.96 : 76,673.76 = 19,959.40 : x
  2. Step 2: Convert to fraction form
    51,145.96/76,673.76 = 19,959.40/x
  3. Step 3: Cross multiply
    51,145.96x = 76,673.76 × 19,959.40
  4. Step 4: Simplify right side
    51,145.96x = 1,530,362,245.34
  5. Step 5: Solve for x
    x = 1,530,362,245.34/51,145.96
  6. Step 6: Final answer
    x = 29,921.47

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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.