Home / 85,466.10-128,199.15-41,179.35

Finding the Fourth Proportional to 85,466.10, 128,199.15 and 41,179.35

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Solution

The fourth proportional to 85,466.10, 128,199.15 and 41,179.35 is: 61,769.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,466.10 : 128,199.15 = 41,179.35 : x
  2. Step 2: Convert to fraction form
    85,466.10/128,199.15 = 41,179.35/x
  3. Step 3: Cross multiply
    85,466.10x = 128,199.15 × 41,179.35
  4. Step 4: Simplify right side
    85,466.10x = 5,279,157,667.55
  5. Step 5: Solve for x
    x = 5,279,157,667.55/85,466.10
  6. Step 6: Final answer
    x = 61,769.03

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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.