Home / 66,134.06-91,250.80-39,285.62

Finding the Fourth Proportional to 66,134.06, 91,250.80 and 39,285.62

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Solution

The fourth proportional to 66,134.06, 91,250.80 and 39,285.62 is: 54,205.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,134.06 : 91,250.80 = 39,285.62 : x
  2. Step 2: Convert to fraction form
    66,134.06/91,250.80 = 39,285.62/x
  3. Step 3: Cross multiply
    66,134.06x = 91,250.80 × 39,285.62
  4. Step 4: Simplify right side
    66,134.06x = 3,584,843,699.03
  5. Step 5: Solve for x
    x = 3,584,843,699.03/66,134.06
  6. Step 6: Final answer
    x = 54,205.71

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1.5x scale

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.