Home / 45,102.28-67,663.41-13,511.07

Finding the Fourth Proportional to 45,102.28, 67,663.41 and 13,511.07

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Solution

The fourth proportional to 45,102.28, 67,663.41 and 13,511.07 is: 20,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,102.28 : 67,663.41 = 13,511.07 : x
  2. Step 2: Convert to fraction form
    45,102.28/67,663.41 = 13,511.07/x
  3. Step 3: Cross multiply
    45,102.28x = 67,663.41 × 13,511.07
  4. Step 4: Simplify right side
    45,102.28x = 914,205,068.95
  5. Step 5: Solve for x
    x = 914,205,068.95/45,102.28
  6. Step 6: Final answer
    x = 20,269.60

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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.