Home / 42,282.43-63,418.60-11,120.11

Finding the Fourth Proportional to 42,282.43, 63,418.60 and 11,120.11

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Solution

The fourth proportional to 42,282.43, 63,418.60 and 11,120.11 is: 16,678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,282.43 : 63,418.60 = 11,120.11 : x
  2. Step 2: Convert to fraction form
    42,282.43/63,418.60 = 11,120.11/x
  3. Step 3: Cross multiply
    42,282.43x = 63,418.60 × 11,120.11
  4. Step 4: Simplify right side
    42,282.43x = 705,221,808.05
  5. Step 5: Solve for x
    x = 705,221,808.05/42,282.43
  6. Step 6: Final answer
    x = 16,678.84

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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.