Home / 85,821.12-118,441.44-49,999.68

Finding the Fourth Proportional to 85,821.12, 118,441.44 and 49,999.68

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Solution

The fourth proportional to 85,821.12, 118,441.44 and 49,999.68 is: 69,004.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,821.12 : 118,441.44 = 49,999.68 : x
  2. Step 2: Convert to fraction form
    85,821.12/118,441.44 = 49,999.68/x
  3. Step 3: Cross multiply
    85,821.12x = 118,441.44 × 49,999.68
  4. Step 4: Simplify right side
    85,821.12x = 5,922,034,098.74
  5. Step 5: Solve for x
    x = 5,922,034,098.74/85,821.12
  6. Step 6: Final answer
    x = 69,004.39

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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.