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Finding the Fourth Proportional to 76,230.40, 114,334.80 and 23,645.20

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Solution

The fourth proportional to 76,230.40, 114,334.80 and 23,645.20 is: 35,464.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,230.40 : 114,334.80 = 23,645.20 : x
  2. Step 2: Convert to fraction form
    76,230.40/114,334.80 = 23,645.20/x
  3. Step 3: Cross multiply
    76,230.40x = 114,334.80 × 23,645.20
  4. Step 4: Simplify right side
    76,230.40x = 2,703,469,212.96
  5. Step 5: Solve for x
    x = 2,703,469,212.96/76,230.40
  6. Step 6: Final answer
    x = 35,464.45

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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.