Home / 72,825.12-109,237.68-41,638.50

Finding the Fourth Proportional to 72,825.12, 109,237.68 and 41,638.50

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Solution

The fourth proportional to 72,825.12, 109,237.68 and 41,638.50 is: 62,457.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,825.12 : 109,237.68 = 41,638.50 : x
  2. Step 2: Convert to fraction form
    72,825.12/109,237.68 = 41,638.50/x
  3. Step 3: Cross multiply
    72,825.12x = 109,237.68 × 41,638.50
  4. Step 4: Simplify right side
    72,825.12x = 4,548,493,138.68
  5. Step 5: Solve for x
    x = 4,548,493,138.68/72,825.12
  6. Step 6: Final answer
    x = 62,457.75

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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.