Home / 51,438.27-70,981.94-28,772.88

Finding the Fourth Proportional to 51,438.27, 70,981.94 and 28,772.88

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Solution

The fourth proportional to 51,438.27, 70,981.94 and 28,772.88 is: 39,704.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,438.27 : 70,981.94 = 28,772.88 : x
  2. Step 2: Convert to fraction form
    51,438.27/70,981.94 = 28,772.88/x
  3. Step 3: Cross multiply
    51,438.27x = 70,981.94 × 28,772.88
  4. Step 4: Simplify right side
    51,438.27x = 2,042,354,697.92
  5. Step 5: Solve for x
    x = 2,042,354,697.92/51,438.27
  6. Step 6: Final answer
    x = 39,704.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.