Home / 85,857.22-128,784.46-23,527.72

Finding the Fourth Proportional to 85,857.22, 128,784.46 and 23,527.72

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Solution

The fourth proportional to 85,857.22, 128,784.46 and 23,527.72 is: 35,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,857.22 : 128,784.46 = 23,527.72 : x
  2. Step 2: Convert to fraction form
    85,857.22/128,784.46 = 23,527.72/x
  3. Step 3: Cross multiply
    85,857.22x = 128,784.46 × 23,527.72
  4. Step 4: Simplify right side
    85,857.22x = 3,030,004,715.23
  5. Step 5: Solve for x
    x = 3,030,004,715.23/85,857.22
  6. Step 6: Final answer
    x = 35,291.20

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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.