Home / 51,611.20-77,431.20-25,316.80

Finding the Fourth Proportional to 51,611.20, 77,431.20 and 25,316.80

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Solution

The fourth proportional to 51,611.20, 77,431.20 and 25,316.80 is: 37,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,611.20 : 77,431.20 = 25,316.80 : x
  2. Step 2: Convert to fraction form
    51,611.20/77,431.20 = 25,316.80/x
  3. Step 3: Cross multiply
    51,611.20x = 77,431.20 × 25,316.80
  4. Step 4: Simplify right side
    51,611.20x = 1,960,310,204.16
  5. Step 5: Solve for x
    x = 1,960,310,204.16/51,611.20
  6. Step 6: Final answer
    x = 37,982.26

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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.