Home / 57,140.14-85,631.39-43,084.72

Finding the Fourth Proportional to 57,140.14, 85,631.39 and 43,084.72

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Solution

The fourth proportional to 57,140.14, 85,631.39 and 43,084.72 is: 64,567.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,140.14 : 85,631.39 = 43,084.72 : x
  2. Step 2: Convert to fraction form
    57,140.14/85,631.39 = 43,084.72/x
  3. Step 3: Cross multiply
    57,140.14x = 85,631.39 × 43,084.72
  4. Step 4: Simplify right side
    57,140.14x = 3,689,404,695.55
  5. Step 5: Solve for x
    x = 3,689,404,695.55/57,140.14
  6. Step 6: Final answer
    x = 64,567.65

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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.