Home / 85,622.34-128,378.82-41,160.62

Finding the Fourth Proportional to 85,622.34, 128,378.82 and 41,160.62

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Solution

The fourth proportional to 85,622.34, 128,378.82 and 41,160.62 is: 61,714.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,622.34 : 128,378.82 = 41,160.62 : x
  2. Step 2: Convert to fraction form
    85,622.34/128,378.82 = 41,160.62/x
  3. Step 3: Cross multiply
    85,622.34x = 128,378.82 × 41,160.62
  4. Step 4: Simplify right side
    85,622.34x = 5,284,151,826.07
  5. Step 5: Solve for x
    x = 5,284,151,826.07/85,622.34
  6. Step 6: Final answer
    x = 61,714.64

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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.