Home / 76,695.20-115,086.72-41,637.80

Finding the Fourth Proportional to 76,695.20, 115,086.72 and 41,637.80

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Solution

The fourth proportional to 76,695.20, 115,086.72 and 41,637.80 is: 62,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,695.20 : 115,086.72 = 41,637.80 : x
  2. Step 2: Convert to fraction form
    76,695.20/115,086.72 = 41,637.80/x
  3. Step 3: Cross multiply
    76,695.20x = 115,086.72 × 41,637.80
  4. Step 4: Simplify right side
    76,695.20x = 4,791,957,830.02
  5. Step 5: Solve for x
    x = 4,791,957,830.02/76,695.20
  6. Step 6: Final answer
    x = 62,480.54

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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.