Home / 82,845.87-124,212.11-57,899.49

Finding the Fourth Proportional to 82,845.87, 124,212.11 and 57,899.49

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Solution

The fourth proportional to 82,845.87, 124,212.11 and 57,899.49 is: 86,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,845.87 : 124,212.11 = 57,899.49 : x
  2. Step 2: Convert to fraction form
    82,845.87/124,212.11 = 57,899.49/x
  3. Step 3: Cross multiply
    82,845.87x = 124,212.11 × 57,899.49
  4. Step 4: Simplify right side
    82,845.87x = 7,191,817,531.33
  5. Step 5: Solve for x
    x = 7,191,817,531.33/82,845.87
  6. Step 6: Final answer
    x = 86,809.61

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1.5x scale

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.