Home / 42,550.70-63,825.12-11,385.94

Finding the Fourth Proportional to 42,550.70, 63,825.12 and 11,385.94

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Solution

The fourth proportional to 42,550.70, 63,825.12 and 11,385.94 is: 17,078.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,550.70 : 63,825.12 = 11,385.94 : x
  2. Step 2: Convert to fraction form
    42,550.70/63,825.12 = 11,385.94/x
  3. Step 3: Cross multiply
    42,550.70x = 63,825.12 × 11,385.94
  4. Step 4: Simplify right side
    42,550.70x = 726,708,986.81
  5. Step 5: Solve for x
    x = 726,708,986.81/42,550.70
  6. Step 6: Final answer
    x = 17,078.66

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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.