Home / 66,506.31-91,775.85-36,290.88

Finding the Fourth Proportional to 66,506.31, 91,775.85 and 36,290.88

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Solution

The fourth proportional to 66,506.31, 91,775.85 and 36,290.88 is: 50,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,506.31 : 91,775.85 = 36,290.88 : x
  2. Step 2: Convert to fraction form
    66,506.31/91,775.85 = 36,290.88/x
  3. Step 3: Cross multiply
    66,506.31x = 91,775.85 × 36,290.88
  4. Step 4: Simplify right side
    66,506.31x = 3,330,626,359.25
  5. Step 5: Solve for x
    x = 3,330,626,359.25/66,506.31
  6. Step 6: Final answer
    x = 50,079.85

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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.