Home / 76,139.28-114,173.55-40,591.62

Finding the Fourth Proportional to 76,139.28, 114,173.55 and 40,591.62

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Solution

The fourth proportional to 76,139.28, 114,173.55 and 40,591.62 is: 60,868.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,139.28 : 114,173.55 = 40,591.62 : x
  2. Step 2: Convert to fraction form
    76,139.28/114,173.55 = 40,591.62/x
  3. Step 3: Cross multiply
    76,139.28x = 114,173.55 × 40,591.62
  4. Step 4: Simplify right side
    76,139.28x = 4,634,489,355.65
  5. Step 5: Solve for x
    x = 4,634,489,355.65/76,139.28
  6. Step 6: Final answer
    x = 60,868.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.