Home / 51,638.92-77,448.35-14,189.38

Finding the Fourth Proportional to 51,638.92, 77,448.35 and 14,189.38

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Solution

The fourth proportional to 51,638.92, 77,448.35 and 14,189.38 is: 21,281.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,638.92 : 77,448.35 = 14,189.38 : x
  2. Step 2: Convert to fraction form
    51,638.92/77,448.35 = 14,189.38/x
  3. Step 3: Cross multiply
    51,638.92x = 77,448.35 × 14,189.38
  4. Step 4: Simplify right side
    51,638.92x = 1,098,943,910.38
  5. Step 5: Solve for x
    x = 1,098,943,910.38/51,638.92
  6. Step 6: Final answer
    x = 21,281.31

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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.