Home / 76,599.16-114,898.75-20,439.47

Finding the Fourth Proportional to 76,599.16, 114,898.75 and 20,439.47

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Solution

The fourth proportional to 76,599.16, 114,898.75 and 20,439.47 is: 30,659.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,599.16 : 114,898.75 = 20,439.47 : x
  2. Step 2: Convert to fraction form
    76,599.16/114,898.75 = 20,439.47/x
  3. Step 3: Cross multiply
    76,599.16x = 114,898.75 × 20,439.47
  4. Step 4: Simplify right side
    76,599.16x = 2,348,469,662.42
  5. Step 5: Solve for x
    x = 2,348,469,662.42/76,599.16
  6. Step 6: Final answer
    x = 30,659.21

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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.