Home / 51,422.70-77,148.45-25,128.30

Finding the Fourth Proportional to 51,422.70, 77,148.45 and 25,128.30

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Solution

The fourth proportional to 51,422.70, 77,148.45 and 25,128.30 is: 37,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,422.70 : 77,148.45 = 25,128.30 : x
  2. Step 2: Convert to fraction form
    51,422.70/77,148.45 = 25,128.30/x
  3. Step 3: Cross multiply
    51,422.70x = 77,148.45 × 25,128.30
  4. Step 4: Simplify right side
    51,422.70x = 1,938,609,396.14
  5. Step 5: Solve for x
    x = 1,938,609,396.14/51,422.70
  6. Step 6: Final answer
    x = 37,699.49

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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.