Home / 66,213.93-91,375.59-38,991.20

Finding the Fourth Proportional to 66,213.93, 91,375.59 and 38,991.20

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Solution

The fourth proportional to 66,213.93, 91,375.59 and 38,991.20 is: 53,808.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,213.93 : 91,375.59 = 38,991.20 : x
  2. Step 2: Convert to fraction form
    66,213.93/91,375.59 = 38,991.20/x
  3. Step 3: Cross multiply
    66,213.93x = 91,375.59 × 38,991.20
  4. Step 4: Simplify right side
    66,213.93x = 3,562,843,447.93
  5. Step 5: Solve for x
    x = 3,562,843,447.93/66,213.93
  6. Step 6: Final answer
    x = 53,808.06

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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.