Home / 85,964.91-128,941.26-22,783.64

Finding the Fourth Proportional to 85,964.91, 128,941.26 and 22,783.64

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Solution

The fourth proportional to 85,964.91, 128,941.26 and 22,783.64 is: 34,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,964.91 : 128,941.26 = 22,783.64 : x
  2. Step 2: Convert to fraction form
    85,964.91/128,941.26 = 22,783.64/x
  3. Step 3: Cross multiply
    85,964.91x = 128,941.26 × 22,783.64
  4. Step 4: Simplify right side
    85,964.91x = 2,937,750,604.28
  5. Step 5: Solve for x
    x = 2,937,750,604.28/85,964.91
  6. Step 6: Final answer
    x = 34,173.83

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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.