Home / 51,977.49-77,974.65-20,370.42

Finding the Fourth Proportional to 51,977.49, 77,974.65 and 20,370.42

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Solution

The fourth proportional to 51,977.49, 77,974.65 and 20,370.42 is: 30,558.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,977.49 : 77,974.65 = 20,370.42 : x
  2. Step 2: Convert to fraction form
    51,977.49/77,974.65 = 20,370.42/x
  3. Step 3: Cross multiply
    51,977.49x = 77,974.65 × 20,370.42
  4. Step 4: Simplify right side
    51,977.49x = 1,588,376,077.45
  5. Step 5: Solve for x
    x = 1,588,376,077.45/51,977.49
  6. Step 6: Final answer
    x = 30,558.92

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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.