Home / 77,143.05-115,723.08-24,540.30

Finding the Fourth Proportional to 77,143.05, 115,723.08 and 24,540.30

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Solution

The fourth proportional to 77,143.05, 115,723.08 and 24,540.30 is: 36,813.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,143.05 : 115,723.08 = 24,540.30 : x
  2. Step 2: Convert to fraction form
    77,143.05/115,723.08 = 24,540.30/x
  3. Step 3: Cross multiply
    77,143.05x = 115,723.08 × 24,540.30
  4. Step 4: Simplify right side
    77,143.05x = 2,839,879,100.12
  5. Step 5: Solve for x
    x = 2,839,879,100.12/77,143.05
  6. Step 6: Final answer
    x = 36,813.16

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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.