Home / 74,563.85-111,849.24-21,259.45

Finding the Fourth Proportional to 74,563.85, 111,849.24 and 21,259.45

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Solution

The fourth proportional to 74,563.85, 111,849.24 and 21,259.45 is: 31,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,563.85 : 111,849.24 = 21,259.45 : x
  2. Step 2: Convert to fraction form
    74,563.85/111,849.24 = 21,259.45/x
  3. Step 3: Cross multiply
    74,563.85x = 111,849.24 × 21,259.45
  4. Step 4: Simplify right side
    74,563.85x = 2,377,853,325.32
  5. Step 5: Solve for x
    x = 2,377,853,325.32/74,563.85
  6. Step 6: Final answer
    x = 31,890.16

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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.