Home / 85,382.08-128,074.96-22,204.64

Finding the Fourth Proportional to 85,382.08, 128,074.96 and 22,204.64

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Solution

The fourth proportional to 85,382.08, 128,074.96 and 22,204.64 is: 33,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,382.08 : 128,074.96 = 22,204.64 : x
  2. Step 2: Convert to fraction form
    85,382.08/128,074.96 = 22,204.64/x
  3. Step 3: Cross multiply
    85,382.08x = 128,074.96 × 22,204.64
  4. Step 4: Simplify right side
    85,382.08x = 2,843,858,379.81
  5. Step 5: Solve for x
    x = 2,843,858,379.81/85,382.08
  6. Step 6: Final answer
    x = 33,307.44

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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.