Home / 51,604.20-77,420.70-25,309.80

Finding the Fourth Proportional to 51,604.20, 77,420.70 and 25,309.80

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Solution

The fourth proportional to 51,604.20, 77,420.70 and 25,309.80 is: 37,971.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,604.20 : 77,420.70 = 25,309.80 : x
  2. Step 2: Convert to fraction form
    51,604.20/77,420.70 = 25,309.80/x
  3. Step 3: Cross multiply
    51,604.20x = 77,420.70 × 25,309.80
  4. Step 4: Simplify right side
    51,604.20x = 1,959,502,432.86
  5. Step 5: Solve for x
    x = 1,959,502,432.86/51,604.20
  6. Step 6: Final answer
    x = 37,971.76

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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.