Home / 51,281.79-76,922.69-40,959.15

Finding the Fourth Proportional to 51,281.79, 76,922.69 and 40,959.15

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Solution

The fourth proportional to 51,281.79, 76,922.69 and 40,959.15 is: 61,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,281.79 : 76,922.69 = 40,959.15 : x
  2. Step 2: Convert to fraction form
    51,281.79/76,922.69 = 40,959.15/x
  3. Step 3: Cross multiply
    51,281.79x = 76,922.69 × 40,959.15
  4. Step 4: Simplify right side
    51,281.79x = 3,150,687,793.32
  5. Step 5: Solve for x
    x = 3,150,687,793.32/51,281.79
  6. Step 6: Final answer
    x = 61,438.73

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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.