Home / 85,567.34-128,244-41,182.22

Finding the Fourth Proportional to 85,567.34, 128,244 and 41,182.22

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Solution

The fourth proportional to 85,567.34, 128,244 and 41,182.22 is: 61,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,567.34 : 128,244 = 41,182.22 : x
  2. Step 2: Convert to fraction form
    85,567.34/128,244 = 41,182.22/x
  3. Step 3: Cross multiply
    85,567.34x = 128,244 × 41,182.22
  4. Step 4: Simplify right side
    85,567.34x = 5,281,372,621.68
  5. Step 5: Solve for x
    x = 5,281,372,621.68/85,567.34
  6. Step 6: Final answer
    x = 61,721.83

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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.