Home / 45,738.38-68,536.71-31,725.65

Finding the Fourth Proportional to 45,738.38, 68,536.71 and 31,725.65

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Solution

The fourth proportional to 45,738.38, 68,536.71 and 31,725.65 is: 47,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,738.38 : 68,536.71 = 31,725.65 : x
  2. Step 2: Convert to fraction form
    45,738.38/68,536.71 = 31,725.65/x
  3. Step 3: Cross multiply
    45,738.38x = 68,536.71 × 31,725.65
  4. Step 4: Simplify right side
    45,738.38x = 2,174,371,330.93
  5. Step 5: Solve for x
    x = 2,174,371,330.93/45,738.38
  6. Step 6: Final answer
    x = 47,539.32

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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.