Home / 85,540.08-128,295.54-23,196

Finding the Fourth Proportional to 85,540.08, 128,295.54 and 23,196

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Solution

The fourth proportional to 85,540.08, 128,295.54 and 23,196 is: 34,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,540.08 : 128,295.54 = 23,196 : x
  2. Step 2: Convert to fraction form
    85,540.08/128,295.54 = 23,196/x
  3. Step 3: Cross multiply
    85,540.08x = 128,295.54 × 23,196
  4. Step 4: Simplify right side
    85,540.08x = 2,975,943,345.84
  5. Step 5: Solve for x
    x = 2,975,943,345.84/85,540.08
  6. Step 6: Final answer
    x = 34,790.05

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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.