Home / 51,358.16-70,874.73-30,137.78

Finding the Fourth Proportional to 51,358.16, 70,874.73 and 30,137.78

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Solution

The fourth proportional to 51,358.16, 70,874.73 and 30,137.78 is: 41,590.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,358.16 : 70,874.73 = 30,137.78 : x
  2. Step 2: Convert to fraction form
    51,358.16/70,874.73 = 30,137.78/x
  3. Step 3: Cross multiply
    51,358.16x = 70,874.73 × 30,137.78
  4. Step 4: Simplify right side
    51,358.16x = 2,136,007,020.30
  5. Step 5: Solve for x
    x = 2,136,007,020.30/51,358.16
  6. Step 6: Final answer
    x = 41,590.41

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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.