Home / 66,134.95-91,255.57-40,633.11

Finding the Fourth Proportional to 66,134.95, 91,255.57 and 40,633.11

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Solution

The fourth proportional to 66,134.95, 91,255.57 and 40,633.11 is: 56,067.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,134.95 : 91,255.57 = 40,633.11 : x
  2. Step 2: Convert to fraction form
    66,134.95/91,255.57 = 40,633.11/x
  3. Step 3: Cross multiply
    66,134.95x = 91,255.57 × 40,633.11
  4. Step 4: Simplify right side
    66,134.95x = 3,707,997,410.76
  5. Step 5: Solve for x
    x = 3,707,997,410.76/66,134.95
  6. Step 6: Final answer
    x = 56,067.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.