Home / 66,131.30-91,261.17-35,916.58

Finding the Fourth Proportional to 66,131.30, 91,261.17 and 35,916.58

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Solution

The fourth proportional to 66,131.30, 91,261.17 and 35,916.58 is: 49,564.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,131.30 : 91,261.17 = 35,916.58 : x
  2. Step 2: Convert to fraction form
    66,131.30/91,261.17 = 35,916.58/x
  3. Step 3: Cross multiply
    66,131.30x = 91,261.17 × 35,916.58
  4. Step 4: Simplify right side
    66,131.30x = 3,277,789,113.20
  5. Step 5: Solve for x
    x = 3,277,789,113.20/66,131.30
  6. Step 6: Final answer
    x = 49,564.87

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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.