Home / 51,751.05-77,429.73-31,980.57

Finding the Fourth Proportional to 51,751.05, 77,429.73 and 31,980.57

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Solution

The fourth proportional to 51,751.05, 77,429.73 and 31,980.57 is: 47,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,751.05 : 77,429.73 = 31,980.57 : x
  2. Step 2: Convert to fraction form
    51,751.05/77,429.73 = 31,980.57/x
  3. Step 3: Cross multiply
    51,751.05x = 77,429.73 × 31,980.57
  4. Step 4: Simplify right side
    51,751.05x = 2,476,246,900.35
  5. Step 5: Solve for x
    x = 2,476,246,900.35/51,751.05
  6. Step 6: Final answer
    x = 47,849.21

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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.