Home / 76,438.33-114,662.55-20,277.65

Finding the Fourth Proportional to 76,438.33, 114,662.55 and 20,277.65

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Solution

The fourth proportional to 76,438.33, 114,662.55 and 20,277.65 is: 30,417.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,438.33 : 114,662.55 = 20,277.65 : x
  2. Step 2: Convert to fraction form
    76,438.33/114,662.55 = 20,277.65/x
  3. Step 3: Cross multiply
    76,438.33x = 114,662.55 × 20,277.65
  4. Step 4: Simplify right side
    76,438.33x = 2,325,087,057.01
  5. Step 5: Solve for x
    x = 2,325,087,057.01/76,438.33
  6. Step 6: Final answer
    x = 30,417.82

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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.