Home / 86,000.24-128,958.64-36,066.93

Finding the Fourth Proportional to 86,000.24, 128,958.64 and 36,066.93

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Solution

The fourth proportional to 86,000.24, 128,958.64 and 36,066.93 is: 54,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,000.24 : 128,958.64 = 36,066.93 : x
  2. Step 2: Convert to fraction form
    86,000.24/128,958.64 = 36,066.93/x
  3. Step 3: Cross multiply
    86,000.24x = 128,958.64 × 36,066.93
  4. Step 4: Simplify right side
    86,000.24x = 4,651,142,241.78
  5. Step 5: Solve for x
    x = 4,651,142,241.78/86,000.24
  6. Step 6: Final answer
    x = 54,082.90

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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.