Home / 45,715.20-68,572.80-19,401.49

Finding the Fourth Proportional to 45,715.20, 68,572.80 and 19,401.49

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Solution

The fourth proportional to 45,715.20, 68,572.80 and 19,401.49 is: 29,102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,715.20 : 68,572.80 = 19,401.49 : x
  2. Step 2: Convert to fraction form
    45,715.20/68,572.80 = 19,401.49/x
  3. Step 3: Cross multiply
    45,715.20x = 68,572.80 × 19,401.49
  4. Step 4: Simplify right side
    45,715.20x = 1,330,414,493.47
  5. Step 5: Solve for x
    x = 1,330,414,493.47/45,715.20
  6. Step 6: Final answer
    x = 29,102.24

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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.