Home / 50,929.20-76,392.12-20,942.40

Finding the Fourth Proportional to 50,929.20, 76,392.12 and 20,942.40

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Solution

The fourth proportional to 50,929.20, 76,392.12 and 20,942.40 is: 31,412.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,929.20 : 76,392.12 = 20,942.40 : x
  2. Step 2: Convert to fraction form
    50,929.20/76,392.12 = 20,942.40/x
  3. Step 3: Cross multiply
    50,929.20x = 76,392.12 × 20,942.40
  4. Step 4: Simplify right side
    50,929.20x = 1,599,834,333.89
  5. Step 5: Solve for x
    x = 1,599,834,333.89/50,929.20
  6. Step 6: Final answer
    x = 31,412.91

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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.