Home / 85,572.36-128,251.50-41,187.24

Finding the Fourth Proportional to 85,572.36, 128,251.50 and 41,187.24

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Solution

The fourth proportional to 85,572.36, 128,251.50 and 41,187.24 is: 61,729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,572.36 : 128,251.50 = 41,187.24 : x
  2. Step 2: Convert to fraction form
    85,572.36/128,251.50 = 41,187.24/x
  3. Step 3: Cross multiply
    85,572.36x = 128,251.50 × 41,187.24
  4. Step 4: Simplify right side
    85,572.36x = 5,282,325,310.86
  5. Step 5: Solve for x
    x = 5,282,325,310.86/85,572.36
  6. Step 6: Final answer
    x = 61,729.34

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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.