Home / 45,201.38-67,802.76-21,511.40

Finding the Fourth Proportional to 45,201.38, 67,802.76 and 21,511.40

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Solution

The fourth proportional to 45,201.38, 67,802.76 and 21,511.40 is: 32,267.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,201.38 : 67,802.76 = 21,511.40 : x
  2. Step 2: Convert to fraction form
    45,201.38/67,802.76 = 21,511.40/x
  3. Step 3: Cross multiply
    45,201.38x = 67,802.76 × 21,511.40
  4. Step 4: Simplify right side
    45,201.38x = 1,458,531,952.45
  5. Step 5: Solve for x
    x = 1,458,531,952.45/45,201.38
  6. Step 6: Final answer
    x = 32,267.42

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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.