Home / 76,832.47-115,031.37-40,726.66

Finding the Fourth Proportional to 76,832.47, 115,031.37 and 40,726.66

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Solution

The fourth proportional to 76,832.47, 115,031.37 and 40,726.66 is: 60,974.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,832.47 : 115,031.37 = 40,726.66 : x
  2. Step 2: Convert to fraction form
    76,832.47/115,031.37 = 40,726.66/x
  3. Step 3: Cross multiply
    76,832.47x = 115,031.37 × 40,726.66
  4. Step 4: Simplify right side
    76,832.47x = 4,684,843,055.53
  5. Step 5: Solve for x
    x = 4,684,843,055.53/76,832.47
  6. Step 6: Final answer
    x = 60,974.78

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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.