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Finding the Fourth Proportional to 66,482.56, 91,735.50 and 38,182.78

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Solution

The fourth proportional to 66,482.56, 91,735.50 and 38,182.78 is: 52,686.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,482.56 : 91,735.50 = 38,182.78 : x
  2. Step 2: Convert to fraction form
    66,482.56/91,735.50 = 38,182.78/x
  3. Step 3: Cross multiply
    66,482.56x = 91,735.50 × 38,182.78
  4. Step 4: Simplify right side
    66,482.56x = 3,502,716,414.69
  5. Step 5: Solve for x
    x = 3,502,716,414.69/66,482.56
  6. Step 6: Final answer
    x = 52,686.24

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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.