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Finding the Fourth Proportional to 66,726.99, 100,074.29 and 31,165.83

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Solution

The fourth proportional to 66,726.99, 100,074.29 and 31,165.83 is: 46,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,726.99 : 100,074.29 = 31,165.83 : x
  2. Step 2: Convert to fraction form
    66,726.99/100,074.29 = 31,165.83/x
  3. Step 3: Cross multiply
    66,726.99x = 100,074.29 × 31,165.83
  4. Step 4: Simplify right side
    66,726.99x = 3,118,898,153.68
  5. Step 5: Solve for x
    x = 3,118,898,153.68/66,726.99
  6. Step 6: Final answer
    x = 46,741.18

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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.