Home / 51,965.91-77,890.55-25,689.11

Finding the Fourth Proportional to 51,965.91, 77,890.55 and 25,689.11

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Solution

The fourth proportional to 51,965.91, 77,890.55 and 25,689.11 is: 38,504.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,965.91 : 77,890.55 = 25,689.11 : x
  2. Step 2: Convert to fraction form
    51,965.91/77,890.55 = 25,689.11/x
  3. Step 3: Cross multiply
    51,965.91x = 77,890.55 × 25,689.11
  4. Step 4: Simplify right side
    51,965.91x = 2,000,938,389.01
  5. Step 5: Solve for x
    x = 2,000,938,389.01/51,965.91
  6. Step 6: Final answer
    x = 38,504.83

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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.