Home / 66,125.76-99,192.39-21,151.07

Finding the Fourth Proportional to 66,125.76, 99,192.39 and 21,151.07

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Solution

The fourth proportional to 66,125.76, 99,192.39 and 21,151.07 is: 31,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,125.76 : 99,192.39 = 21,151.07 : x
  2. Step 2: Convert to fraction form
    66,125.76/99,192.39 = 21,151.07/x
  3. Step 3: Cross multiply
    66,125.76x = 99,192.39 × 21,151.07
  4. Step 4: Simplify right side
    66,125.76x = 2,098,025,086.81
  5. Step 5: Solve for x
    x = 2,098,025,086.81/66,125.76
  6. Step 6: Final answer
    x = 31,727.80

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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.