Home / 76,605.28-114,919.90-39,145.01

Finding the Fourth Proportional to 76,605.28, 114,919.90 and 39,145.01

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Solution

The fourth proportional to 76,605.28, 114,919.90 and 39,145.01 is: 58,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,605.28 : 114,919.90 = 39,145.01 : x
  2. Step 2: Convert to fraction form
    76,605.28/114,919.90 = 39,145.01/x
  3. Step 3: Cross multiply
    76,605.28x = 114,919.90 × 39,145.01
  4. Step 4: Simplify right side
    76,605.28x = 4,498,539,962.24
  5. Step 5: Solve for x
    x = 4,498,539,962.24/76,605.28
  6. Step 6: Final answer
    x = 58,723.63

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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.