Home / 62,845.75-86,740.35-39,860.69

Finding the Fourth Proportional to 62,845.75, 86,740.35 and 39,860.69

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Solution

The fourth proportional to 62,845.75, 86,740.35 and 39,860.69 is: 55,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,845.75 : 86,740.35 = 39,860.69 : x
  2. Step 2: Convert to fraction form
    62,845.75/86,740.35 = 39,860.69/x
  3. Step 3: Cross multiply
    62,845.75x = 86,740.35 × 39,860.69
  4. Step 4: Simplify right side
    62,845.75x = 3,457,530,201.84
  5. Step 5: Solve for x
    x = 3,457,530,201.84/62,845.75
  6. Step 6: Final answer
    x = 55,016.13

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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.