Home / 66,719.28-92,074.90-38,043.12

Finding the Fourth Proportional to 66,719.28, 92,074.90 and 38,043.12

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Solution

The fourth proportional to 66,719.28, 92,074.90 and 38,043.12 is: 52,500.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,719.28 : 92,074.90 = 38,043.12 : x
  2. Step 2: Convert to fraction form
    66,719.28/92,074.90 = 38,043.12/x
  3. Step 3: Cross multiply
    66,719.28x = 92,074.90 × 38,043.12
  4. Step 4: Simplify right side
    66,719.28x = 3,502,816,469.69
  5. Step 5: Solve for x
    x = 3,502,816,469.69/66,719.28
  6. Step 6: Final answer
    x = 52,500.81

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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.