Home / 66,071.21-91,178.94-35,856.80

Finding the Fourth Proportional to 66,071.21, 91,178.94 and 35,856.80

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Solution

The fourth proportional to 66,071.21, 91,178.94 and 35,856.80 is: 49,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,071.21 : 91,178.94 = 35,856.80 : x
  2. Step 2: Convert to fraction form
    66,071.21/91,178.94 = 35,856.80/x
  3. Step 3: Cross multiply
    66,071.21x = 91,178.94 × 35,856.80
  4. Step 4: Simplify right side
    66,071.21x = 3,269,384,559.90
  5. Step 5: Solve for x
    x = 3,269,384,559.90/66,071.21
  6. Step 6: Final answer
    x = 49,482.74

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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.