Home / 51,340.45-77,038.25-21,375.38

Finding the Fourth Proportional to 51,340.45, 77,038.25 and 21,375.38

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Solution

The fourth proportional to 51,340.45, 77,038.25 and 21,375.38 is: 32,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,340.45 : 77,038.25 = 21,375.38 : x
  2. Step 2: Convert to fraction form
    51,340.45/77,038.25 = 21,375.38/x
  3. Step 3: Cross multiply
    51,340.45x = 77,038.25 × 21,375.38
  4. Step 4: Simplify right side
    51,340.45x = 1,646,721,376.22
  5. Step 5: Solve for x
    x = 1,646,721,376.22/51,340.45
  6. Step 6: Final answer
    x = 32,074.54

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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.