Home / 75,801.20-113,795.40-47,721.20

Finding the Fourth Proportional to 75,801.20, 113,795.40 and 47,721.20

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Solution

The fourth proportional to 75,801.20, 113,795.40 and 47,721.20 is: 71,640.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,801.20 : 113,795.40 = 47,721.20 : x
  2. Step 2: Convert to fraction form
    75,801.20/113,795.40 = 47,721.20/x
  3. Step 3: Cross multiply
    75,801.20x = 113,795.40 × 47,721.20
  4. Step 4: Simplify right side
    75,801.20x = 5,430,453,042.48
  5. Step 5: Solve for x
    x = 5,430,453,042.48/75,801.20
  6. Step 6: Final answer
    x = 71,640.73

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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.