Home / 64,812.42-89,440.61-36,131.74

Finding the Fourth Proportional to 64,812.42, 89,440.61 and 36,131.74

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Solution

The fourth proportional to 64,812.42, 89,440.61 and 36,131.74 is: 49,861.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,812.42 : 89,440.61 = 36,131.74 : x
  2. Step 2: Convert to fraction form
    64,812.42/89,440.61 = 36,131.74/x
  3. Step 3: Cross multiply
    64,812.42x = 89,440.61 × 36,131.74
  4. Step 4: Simplify right side
    64,812.42x = 3,231,644,461.70
  5. Step 5: Solve for x
    x = 3,231,644,461.70/64,812.42
  6. Step 6: Final answer
    x = 49,861.50

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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.