Home / 66,012.28-91,131.96-50,871.76

Finding the Fourth Proportional to 66,012.28, 91,131.96 and 50,871.76

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Solution

The fourth proportional to 66,012.28, 91,131.96 and 50,871.76 is: 70,230.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,012.28 : 91,131.96 = 50,871.76 : x
  2. Step 2: Convert to fraction form
    66,012.28/91,131.96 = 50,871.76/x
  3. Step 3: Cross multiply
    66,012.28x = 91,131.96 × 50,871.76
  4. Step 4: Simplify right side
    66,012.28x = 4,636,043,197.45
  5. Step 5: Solve for x
    x = 4,636,043,197.45/66,012.28
  6. Step 6: Final answer
    x = 70,230.01

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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.