Home / 45,942.56-68,872.22-31,909.21

Finding the Fourth Proportional to 45,942.56, 68,872.22 and 31,909.21

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Solution

The fourth proportional to 45,942.56, 68,872.22 and 31,909.21 is: 47,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,942.56 : 68,872.22 = 31,909.21 : x
  2. Step 2: Convert to fraction form
    45,942.56/68,872.22 = 31,909.21/x
  3. Step 3: Cross multiply
    45,942.56x = 68,872.22 × 31,909.21
  4. Step 4: Simplify right side
    45,942.56x = 2,197,658,038.74
  5. Step 5: Solve for x
    x = 2,197,658,038.74/45,942.56
  6. Step 6: Final answer
    x = 47,834.91

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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.