Home / 72,917.42-100,626.07-39,383.42

Finding the Fourth Proportional to 72,917.42, 100,626.07 and 39,383.42

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Solution

The fourth proportional to 72,917.42, 100,626.07 and 39,383.42 is: 54,349.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,917.42 : 100,626.07 = 39,383.42 : x
  2. Step 2: Convert to fraction form
    72,917.42/100,626.07 = 39,383.42/x
  3. Step 3: Cross multiply
    72,917.42x = 100,626.07 × 39,383.42
  4. Step 4: Simplify right side
    72,917.42x = 3,962,998,777.76
  5. Step 5: Solve for x
    x = 3,962,998,777.76/72,917.42
  6. Step 6: Final answer
    x = 54,349.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.