Home / 91,181.10-125,826.63-57,207.90

Finding the Fourth Proportional to 91,181.10, 125,826.63 and 57,207.90

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Solution

The fourth proportional to 91,181.10, 125,826.63 and 57,207.90 is: 78,944.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,181.10 : 125,826.63 = 57,207.90 : x
  2. Step 2: Convert to fraction form
    91,181.10/125,826.63 = 57,207.90/x
  3. Step 3: Cross multiply
    91,181.10x = 125,826.63 × 57,207.90
  4. Step 4: Simplify right side
    91,181.10x = 7,198,277,266.38
  5. Step 5: Solve for x
    x = 7,198,277,266.38/91,181.10
  6. Step 6: Final answer
    x = 78,944.84

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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.