Home / 66,446.76-91,686.06-39,588.60

Finding the Fourth Proportional to 66,446.76, 91,686.06 and 39,588.60

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Solution

The fourth proportional to 66,446.76, 91,686.06 and 39,588.60 is: 54,626.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,446.76 : 91,686.06 = 39,588.60 : x
  2. Step 2: Convert to fraction form
    66,446.76/91,686.06 = 39,588.60/x
  3. Step 3: Cross multiply
    66,446.76x = 91,686.06 × 39,588.60
  4. Step 4: Simplify right side
    66,446.76x = 3,629,722,754.92
  5. Step 5: Solve for x
    x = 3,629,722,754.92/66,446.76
  6. Step 6: Final answer
    x = 54,626.03

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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.