Home / 72,580.10-108,864.68-43,185.02

Finding the Fourth Proportional to 72,580.10, 108,864.68 and 43,185.02

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Solution

The fourth proportional to 72,580.10, 108,864.68 and 43,185.02 is: 64,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,580.10 : 108,864.68 = 43,185.02 : x
  2. Step 2: Convert to fraction form
    72,580.10/108,864.68 = 43,185.02/x
  3. Step 3: Cross multiply
    72,580.10x = 108,864.68 × 43,185.02
  4. Step 4: Simplify right side
    72,580.10x = 4,701,322,622.85
  5. Step 5: Solve for x
    x = 4,701,322,622.85/72,580.10
  6. Step 6: Final answer
    x = 64,774.27

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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.