Home / 66,144.14-91,293.35-40,672.42

Finding the Fourth Proportional to 66,144.14, 91,293.35 and 40,672.42

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Solution

The fourth proportional to 66,144.14, 91,293.35 and 40,672.42 is: 56,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,144.14 : 91,293.35 = 40,672.42 : x
  2. Step 2: Convert to fraction form
    66,144.14/91,293.35 = 40,672.42/x
  3. Step 3: Cross multiply
    66,144.14x = 91,293.35 × 40,672.42
  4. Step 4: Simplify right side
    66,144.14x = 3,713,121,474.41
  5. Step 5: Solve for x
    x = 3,713,121,474.41/66,144.14
  6. Step 6: Final answer
    x = 56,136.82

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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.