Home / 64,660.12-89,230.10-36,365.81

Finding the Fourth Proportional to 64,660.12, 89,230.10 and 36,365.81

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Solution

The fourth proportional to 64,660.12, 89,230.10 and 36,365.81 is: 50,184.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,660.12 : 89,230.10 = 36,365.81 : x
  2. Step 2: Convert to fraction form
    64,660.12/89,230.10 = 36,365.81/x
  3. Step 3: Cross multiply
    64,660.12x = 89,230.10 × 36,365.81
  4. Step 4: Simplify right side
    64,660.12x = 3,244,924,234.90
  5. Step 5: Solve for x
    x = 3,244,924,234.90/64,660.12
  6. Step 6: Final answer
    x = 50,184.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.