Home / 51,352.82-77,029.36-13,913.12

Finding the Fourth Proportional to 51,352.82, 77,029.36 and 13,913.12

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Solution

The fourth proportional to 51,352.82, 77,029.36 and 13,913.12 is: 20,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,352.82 : 77,029.36 = 13,913.12 : x
  2. Step 2: Convert to fraction form
    51,352.82/77,029.36 = 13,913.12/x
  3. Step 3: Cross multiply
    51,352.82x = 77,029.36 × 13,913.12
  4. Step 4: Simplify right side
    51,352.82x = 1,071,718,729.20
  5. Step 5: Solve for x
    x = 1,071,718,729.20/51,352.82
  6. Step 6: Final answer
    x = 20,869.72

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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.