Home / 66,407.06-91,642.94-38,112.75

Finding the Fourth Proportional to 66,407.06, 91,642.94 and 38,112.75

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Solution

The fourth proportional to 66,407.06, 91,642.94 and 38,112.75 is: 52,596.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,407.06 : 91,642.94 = 38,112.75 : x
  2. Step 2: Convert to fraction form
    66,407.06/91,642.94 = 38,112.75/x
  3. Step 3: Cross multiply
    66,407.06x = 91,642.94 × 38,112.75
  4. Step 4: Simplify right side
    66,407.06x = 3,492,764,270.92
  5. Step 5: Solve for x
    x = 3,492,764,270.92/66,407.06
  6. Step 6: Final answer
    x = 52,596.28

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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.