Home / 45,294.23-67,905.62-28,619.12

Finding the Fourth Proportional to 45,294.23, 67,905.62 and 28,619.12

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Solution

The fourth proportional to 45,294.23, 67,905.62 and 28,619.12 is: 42,906.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,294.23 : 67,905.62 = 28,619.12 : x
  2. Step 2: Convert to fraction form
    45,294.23/67,905.62 = 28,619.12/x
  3. Step 3: Cross multiply
    45,294.23x = 67,905.62 × 28,619.12
  4. Step 4: Simplify right side
    45,294.23x = 1,943,398,604.83
  5. Step 5: Solve for x
    x = 1,943,398,604.83/45,294.23
  6. Step 6: Final answer
    x = 42,906.10

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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.