Home / 51,308.20-70,805.60-30,087.80

Finding the Fourth Proportional to 51,308.20, 70,805.60 and 30,087.80

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Solution

The fourth proportional to 51,308.20, 70,805.60 and 30,087.80 is: 41,521.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,308.20 : 70,805.60 = 30,087.80 : x
  2. Step 2: Convert to fraction form
    51,308.20/70,805.60 = 30,087.80/x
  3. Step 3: Cross multiply
    51,308.20x = 70,805.60 × 30,087.80
  4. Step 4: Simplify right side
    51,308.20x = 2,130,384,731.68
  5. Step 5: Solve for x
    x = 2,130,384,731.68/51,308.20
  6. Step 6: Final answer
    x = 41,521.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.