Home / 66,507.42-91,780.20-38,213.04

Finding the Fourth Proportional to 66,507.42, 91,780.20 and 38,213.04

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Solution

The fourth proportional to 66,507.42, 91,780.20 and 38,213.04 is: 52,733.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,507.42 : 91,780.20 = 38,213.04 : x
  2. Step 2: Convert to fraction form
    66,507.42/91,780.20 = 38,213.04/x
  3. Step 3: Cross multiply
    66,507.42x = 91,780.20 × 38,213.04
  4. Step 4: Simplify right side
    66,507.42x = 3,507,200,453.81
  5. Step 5: Solve for x
    x = 3,507,200,453.81/66,507.42
  6. Step 6: Final answer
    x = 52,733.97

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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.