Home / 45,240.09-67,849.20-18,964.50

Finding the Fourth Proportional to 45,240.09, 67,849.20 and 18,964.50

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Solution

The fourth proportional to 45,240.09, 67,849.20 and 18,964.50 is: 28,442.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,240.09 : 67,849.20 = 18,964.50 : x
  2. Step 2: Convert to fraction form
    45,240.09/67,849.20 = 18,964.50/x
  3. Step 3: Cross multiply
    45,240.09x = 67,849.20 × 18,964.50
  4. Step 4: Simplify right side
    45,240.09x = 1,286,726,153.40
  5. Step 5: Solve for x
    x = 1,286,726,153.40/45,240.09
  6. Step 6: Final answer
    x = 28,442.17

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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.